- so she has problems that prevent her from loving you and being with you and being married to you
- her problems don't prevent her from being with her friends and going with them
- she gives you attitude when you hint about doing things together
- she said "I love you but I'm not in love with you" which is usually (but not always) code for "I've found someone or I'm interested in someone who is new & exciting and you're not any of that anymore"

Are you more of a parent than a partner to her?
Do you spend all your time taking care of the family & her but not yourself?
Does she view you as some kind of martyr?