Yes, it is an apology.
Irene.
Followed by an entreaty that Mrs. Renshaw will permit Mrs. Stonehay to call at the Villa Colobiano immediately to make peace in person.
[Wilfrid and Janet go down into the garden.]
Leslie.
You know the letter almost word for word.
Irene.
I know my mother better day by day. Leslie, you don’t see what that means?
Leslie.
That your mother is sorry.