Don't jump back into anything. He needs to prove himself to you with some consistency here. Yes, you went out with the girls, had a good time at the casino without him, bought sexy undies for some unknown reason. You could actually be a hot chick and not just some boring old housewife. But then again, he could move back home and start the cycle all over again. Just stay the hot babe that you are, and keep your distance. The mystery is working.