I agree. And that's what I plan to do. I don't think she's cheated just yet but I don't think I'd really know. I don't know if there would be signs?Dude, just bang the hell out of her while it's still your turn and treat every bang as your last. In the mean while, start looking for other prospects. It's really that simple at this point. No need to hamster it to death like a girl.
But my objective going forward is to hard **** her as much as possible, get all the kinks I want to have with her out and start cold approaching girls while hitting up some old flings.