It seems you're working through your problem by venting on this thread. That's one of the reasons this site exists, so vent away. I hope your detailed post gave you some clarity. You write that the current situation makes you feel depressed & hopeless. Those aren't very healthy feelings if they arise merely from living in your own space. Can you move to another place? I realize leases sometimes lock people into living somewhere, but there might be ways to work around it since it seems like your incompatability with this woman is creating problems for you both.