"that he was in love with a girl from his office who reminds him of how i used to be."

He just gave you a big clue here. What are you going to do with this info? He wants you to be your old self.

M 42 H 39
T10 (-2yrs separation)
S8 D5
DD 7/30/11 (EA&PA)
Reconciled 6/2013
Separation in works 1/2017