I dont think its has anything to do with you or how you feel about her. eventhough you want to make it better seems like she has some issues to deal with on her own. If she doesn't want help there's nothing you can do except stay and feel crappy with her or leave and move on. If there's one thing I've learned you can't save people who don't want to be saved.
If she is "beating herself up" all the time she must be in a great deal of pain. It's hard to care abiout someone else in that place.
She doesn't care, hence, the other person in the picture that she "loves"
I meant that it's hard to stop beating yourself up for someone else. You said " doesn't she know I love her" I'm saying your love won't make it stop. I'm not familiar with that "crow on the power line" what does it mean?
If she doesn't care for herself then why is she doing what she wants and hurting you?
dont blame her a bit. If I had a boyfriend like you, I'd beat myself up too!