First off, I've never been on Yaz so I can't comment on it. I have been on
Estrostep before, though. Nightmare pill, IMO: depressed on my period every month like clockwork (wasn't like that before this pill), weight gain of 15 lbs., and major hair loss. Many do women respond better to monophasic pills (with the same level of hormones all month) rather than triphasic ones (three levels of hormones), though. I always did anyway. Every woman is different, though. However, the pill (even Yaz) does deplete many of the B vitamins, hence the moodiness. So, if you're going to still be on any pill, you should take a B complex vitamin every day. This should replenish what's been lost and help you feel better. It's a shame these pills wreck so many relationships. Hope you can patch things up with him. Good luck.