Was she "dating" before BD? You say she lined up another partner before BD. Sounds like a WW. Monkey branching is cheating. Are you treating her as such? What are you interactions like?
Does birdnesting mean she is still at home?
No D papers filed?
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.