I think there's a support group that may be helpful to you.
Check out yahoo groups for GoMomGo - you'll have to apply to be admitted, because it's a support group for divorcing/separating/divorced/high-stress-relationship moms/women. Many of the women have been in abusive relationships, so the security around the group is tight, but once you write the moderator and are screened, I think you'd find it really helpful. There is light at the end of the tunnel, and learning from other women who have been - or are - there can be incredibly helpful.
http://groups.yahoo.com/group/gomomgo/