everything dan said is perfect.

also...don't you think the fact that she's still living there is making it much harder on you? It's right there in your face when she doesn't come home. It's only natural that you'd be thinking about where she is and what she's doing and who she's doing it with. I think it will be easier to move on when her behavior isn't right under your nose. sure, she'd probably be doing the same things, but you wouldn't know that.