I'm so sorry Smarie
I sure don't miss the anxiety of not knowing what I'm going to come home to... Ugh its awful. I would always call, just before heading home, so I could try to gauge just how drunk he was, and what kind of mood he was in...
Mine cheated too... and out of all that he did to me, that was probably the most devastating
It's your house, right? You DO have the power to demand he leave... you may have to go through the eviction process, but you can do it.
Can you go stay somewhere else for a while, until you can get him out?