On their return to Loches they often recalled with pleasure the events which had led to their meeting with the Princess de Montpensier, a subject which did not give rise to the same pleasure at Champigny. The Prince de Montpensier was dissatisfied with all that had happened without being able to say precisely why. He found fault with his wife for being in the boat. He considered that she had welcomed the Princes too readily; and what displeased him most was that he had noticed the attention paid to her by the Duc de Guise. This had provoked in him a furious bout of jealousy in which he recalled the anger displayed by the Duc at the prospect of his marriage, which caused him to suspect that even at that time the Duc was in love with his wife. The Comte de Chabannes as usual made every effort to act as peacemaker, hoping in this way to show the Princess that his devotion to her was sincere and disinterested. He could not resist asking her what effect the sight of the Duc de Guise had produced. She replied that she had been somewhat upset and embarrassed at the memory of the feelings she had once displayed to him; she found him more handsome than he had been then and it had seemed to her that he wished to persuade her that he still loved her, but she assured the Comte that nothing would shake her determination not to become involved in any intrigue. The Comte was happy to hear of this resolve, but he was far from being sure about the Duc de Guise. He earnestly warned the Princess of the danger of a return to the previous situation should she have any change of heart, though when he spoke of his devotion she adopted her invariable attitude of looking on him as her closest friend but in no way a possible suitor.

The armies were once more called up; all the Princes returned to their posts and the Prince de Montpensier decided that his wife should come with him to Paris so as to be further from the area where it was expected that fighting would take place. The Huguenots besieged Poitiers. The Duc de Guise went there to organise the defence and, while there, enhanced his reputation by his conduct. The Duc d'Anjou suffered from some illness, and left the army either on account of the severity of this or because he wanted to return to the comfort and security of Paris, where the presence of the Princess de Montpensier was not the least of the attractions. The command of the army was taken over by the Prince de Montpensier, and shortly after this, a peace having been arranged, the Court assembled in Paris. Here the beauty of the Princess eclipsed that of all her rivals. She charmed everyone by her looks and personality. The Duc d'Anjou did not abandon the sentiments she had inspired in him at Champigny, he took great care to make her aware of this by all sorts of delicate considerations, being careful at the same time not to make his attentions too obvious for fear of arousing the jealousy of her husband. The Duc de Guise was now fervently in love with her, but wishing, for a variety of reasons, to keep this secret, he resolved to tell her so privately and avoid any preliminaries which, as always, would give rise to talk and exposure. One day when he was in the Queen's apartments where there were very few people, the Queen having left to discuss affairs of state with Cardinal de Lorraine, the Princess de Montpensier arrived. He decided to take this opportunity to speak to her, and going up to her he said, "Although it may surprise and displease you, I want you to know that I have always felt for you that emotion which you once knew so well, and that its power has been so greatly increased by seeing you again that neither your disapproval, the hatred of your husband, nor the rivalry of the first Prince in the kingdom can in the least diminish it. It would perhaps have been more tactful to have let you become aware of this by my behaviour rather than by my words, but my behaviour would have been evident to others as well as to yourself and I wanted you alone to know of my love for you."

The Princess was so surprised and thrown into confusion by this speech that she could not think of an answer, then, just when she had collected her wits and begun to reply, the Prince de Montpensier entered the room. The Princess's face displayed her agitation, and her embarrassment was compounded by the sight of her husband, to such an extent that he was left in no doubt about what the Duc de Guise had been saying to her. Fortunately at that moment the Queen re-entered the room and the Duc de Guise moved away to avoid the jealous Prince.

That evening the Princess found her husband in the worst temper imaginable. He berated her with the utmost violence and forbade her ever to speak to the Duc de Guise again. She retired to her room very sad and much preoccupied with the events of the day. She saw the Duc the next day amid the company around the Queen, but he did not come near her and left soon after she did, indicating that he had no interest in remaining if she was not there. Not a day passed without her receiving a thousand covert marks of the Duc's passion though he did not attempt to speak to her unless he was sure that they could be seen by nobody.

Convinced of the Duc's sincerity, the Princess, in spite of the resolution she had made at Champigny, began to feel in the depths of her heart something of what she had felt in the past.

The Duc d'Anjou for his part, omitted nothing which could demonstrate his devotion in all the places where he could meet her. In the Queen his mother's apartments he followed her about continually, completely ignoring his sister who was very fond of him. It was at around this time that it became evident that this sister, who later became the Queen of Navarre, had a liking for the Duc de Guise, and another thing that became evident was a cooling of the friendship between that Duc and the Duc d'Anjou. The rumour linking the name of the Royal Princess with that of the Duc de Guise disturbed the Princess de Montpensier to a degree which surprised her, and made her realise that she was more interested in the Duc than she had supposed.

Now it so happened that her father-in-law, M. de Montpensier, married a sister of the Duc de Guise, and the princess was bound to meet the Duc frequently in the various places where the marriage celebrations required their presence. She was greatly offended that a man who was widely believed to be in love with "Madame", the King's sister, should dare to make advances to her; she was not only offended but distressed at having deceived herself.

One day, when they met at his sister's house, being a little separated from the rest, the Duc was tempted to speak to her, but she interrupted him sharply saying angrily "I do not understand how, on the basis of a weakness which one had at the age of thirteen, you have the audacity to make amorous proposals to a person like me, particularly when, in the view of the whole Court, you are interested in someone else." The Duc who was intelligent as well as being much in love, understood the emotion which underlay the Princess's words. He answered her most respectfully, "I confess, Madame, that it was wrong of me not to reject the possible honour of becoming the King's brother-in-law, rather than allow you to suspect for a moment that I could desire any heart but yours; but if you will be patient enough to hear me I am sure I can fully justify my behaviour." The Princess made no reply, but she did not go away and the Duc, seeing that she was prepared to listen to him, told her that although he had made no effort to attract the attention of Madame, she had nevertheless honoured him with her interest: as he was not enamoured of her he had responded very coolly to this honour until she gave him to believe that she might marry him. The realisation of the grandeur to which such a marriage would raise him had obliged him to take a little more trouble. This situation had aroused the suspicions of the King and the Duc d'Anjou, but the opposition of neither of them would have any effect on his course of action, however, if this displeased her he would abandon all such notions and never think of them again.

This sacrifice which the Duc was prepared to make caused the Princess to forget all the anger she had shown. She changed the subject and began to speak of the indiscretion displayed by Madame in making the first advances and of the considerable advantages which he would gain if he married her. In the end, without saying anything kind to the Duc de Guise, she made him recall a thousand things he had found so pleasing in Mlle. de Mézières. Although they had not had private conversation for a long time, they found themselves attuned to one another, and their thoughts went along a track which they both had travelled in the past. At the end of this agreeable meeting the Duc was left in a state of considerable happiness, and the Princess was not a little moved to think that he truly loved her. However, in the privacy of her room she became ashamed of the ease with which she had accepted the Duc's excuses and reflected on the trouble into which she might be plunged if she engaged in something she had always regarded with distaste and on the frightening misery which a jealous husband might inflict on her. These thoughts made her adopt new resolves, but they disappeared the next day on the sight of the Duc de Guise.

The new alliance between their families gave the Duc many opportunities to speak to her. He gave her an exact account of all that passed between Madame and himself. He had difficulty in allaying the jealousy to which the beauty of Madame gave rise and any number of promises failed to reassure her. This jealousy enabled the Princess to defend the remains of her heart against the advances of the Duc, who already had won the greater part of it.