I understand. Sometimes, you just have what I like to call a "nutty". And I think you were irritated by her parents. But I think what you and I need to remember is that your W's and my H's reactions to something are not going to be the same as our reactions. And apparently, the in-laws dropping hints like that seemed to have a great impact on her because she asked you to stay.
Leaving was not a bad move. I think that is a 180 and threw her off, which is good at this point. Make her wonder "Who is this guy? I don't know him, but I'd like to! He's sexy!"
And sometimes, I can be completely in my "no thinking about H" zone and other times, I can't shake H out of my mind. That does suck and it's so arbitary as to when it's going to happen.
Glad you had a blast, you deserved it.
And her not calling you.....doesn't mean at all that she doesn't miss you. I think with the situation the way it is, it's a good sign. She's trying to be tough guy.