*hugs*
I know how you feel, sort of. I just ended a very intense relationship and broke the other person's heart because the circumstances surrounding the relationship were really hurting me and taking it's toll and ... *sigh* yeah. I feel more grounded, now, more like I can do the things for myself medically that I need to and even that makes me feel guilty.
At least you were honest, a lot of people have no idea how gut-wrenching it is to have to end a relationship when the other person wants you to stay. You're not a bitch, you just did what you had to. Sometimes doing the right thing can put you through Hell.
*hugs*