My ex and I have been separated 5 months, see each other every day and go between fighting and flirting. I know she's been actively looking for attention from other men. I just found out a mutual acquaintance is trying to set up a 3some with him and his new gf. I could throw up from how disgusting she's behaving. Im still in love with her and it's soul crushing that she's acting like a whore. How do people deal with the mom of their kids moving on?