I think you are right about her bugging him.He must be thinking about you and your R if he has changed that much.
Listen to me very carefully...NO R OR OW TALK! None at all.
Quote: He said I had to finish a phone call, stupid me says yes I know who you were talking to. He says not her. whatever!
Do not do that again!
Pretend like she does not exist. Do not ask questions about her, do not mention her at all. Be happy and confident around him at all times. Make home a nice and happy place for him to be.
Think about it..If you are great and no pressure, and OW is nagging and pressuring.....which place do you think he will choose to spend more time????
Believe me, I DO know how hard it is. But this is your best chance to win. Don't wait around for him either. Make plans to do things. Go out and have fun amd make him wonder about you.
You see it's already working, don't jump the gun on this.
Sorry if I sound harsh but you seem to have a great opportunity here and to many jump the gun and blow it.