Do you not think she is feeling a little sad and reflective ?
That sounds familiar.
My ex, who did the leaving, got like that once I had sorted my life out and tried all sorts to get back.
I had agreed the first time and stuck to it for another 5 years but then she ran off anyway. She tried the same routine again but there was no way I was going though it all again. As I recall it went "I'm going" .... then after six months "I'm coming back" .... to which I said "You do and I'm going" .... then there was a couple of years of using the kids, bills she couldn't or wouldn't pay, love notes reminding me of "Times we had together" interspersed with vitriolic notes about what a b@st@rd I was etc etc.. Finally she sent the kids to live with me as they were getting in the way of her love life and married someone else. Now, 22 years later, we exchange cards at Christmas.