I'm going to recommend that you move very slowly, decline at least every other invitation from her. I know you want to work it out with her, but I made the mistake of taking her back too soon (for the same reason as you) and it burned me several times.
Take it as a one time thing that was nice, and don't try to read into it IMO.
H 34 W 29 BD 3/12/18 Divorce Busted Spring 19
It is not things that bother us, but the stories we tell ourselves about things.
