Does she help pay for the household? If so, then you can't kick her out. The biggest challenge for you seems to be to not concentrate on what she's doing. You need to focus on you. What were the things that made you attractive before? and what were the things that you enjoyed and had fun with before? Do that.
Have you written out your list of goals yet as per DB?
M-43 W-40 2D - 9 and 5
Emotion, yet peace. Ignorance, yet knowledge. Passion, yet serenity. Chaos, yet harmony. Death, yet a new life.
