You should let her lead whatever conversation she wants to... conversate about LOL!
If she asks about divorce tell her plainly, directly and confidently that you will respect whatever decision she has regarding this. Tell her if she wants to file for divorce, she is free to, you won't fight with her on this issue anymore, if this is really what she wants, she should do what she wants to do, you won't stand in her way. (keep it brief, again let her lead the conversation, don't make any assumptions, after all it's just talk right now anyways, nothing more, so just nod, agree and keep your words brief, don't talk too much, let her do most of the talking)
If she wants to hang out, let her hang out, WTF?!
But....
Don't hang out all night. You have plans to go out @ 7 or 8pm with a buddy, someone you just met, she doesn't know them - it's just a friend, gives you a chance to get out of the house and stretch out your legs.
As for saying a prayer, how about I just tell you right, NO F!@#$KING RELATIONSHIP TALK from you. If she wants to talk about the relationship, let her, you can't control her or stop her, you can however control you, give it a try, its actually possible for you to control your actions, reactions, words, etc. You're just not used to self-control and it's something you need to get on top of and when you get used to controlling your words and actions, you will be surprised and what other things you're actually capable of doing.