Probably a combination of both? I have not really cheated on a boyfriend, but have always been quick to rebound. I started dating my current boyfriend less than a week after my ex dumped me. While I was not looking for a rebound or new boyfriend he was someone I had previously met and liked talking to, also I live in a small college town and to meet a single straight guy over 30 was such a rarity that I could not let the opportunity slip by.

Sorry if I was not much help-but the being drunk is a common theme among bi-polar-self medicating. Good luck and hope find someone good enough for you.