What boundaries can I set in regards to her chatting with OM in the house? I already separated our phone bill which she is paying for herself now. And I also I pay for half her car, do I tell her not to see OM in that car or else?
Manny, I'm quoting your question here, you are more likely to get responses.
Anyway, both of the scenarios you brought up aren't so much boundaries as they are you trying to control her. It's her house, and realistically she can talk to who ever she wants. You could say that you do not want her talking to OM in the house, but it would be up to her to respect that.
The issue with the car is the same, it's you trying to control her. The best thing you can do right now is stop trying to control her, it puts pressure on her and makes her want to move everything fast, be meaner to you, etc.
I understand not wanting to be around the house and hearing her talking to OM, so I would definitely say something to her about not doing that, but unless you're in the car, I would not address that at all and just don't think about it.
M - 9 1/2 years 5/5/16 - Bomb drop - 3 week EA 10/31/16 - We sold house 01/10/18 - D Finalized