What am I fighting for?

I have been making a stand, sticking up for her. I know how things
have been in my family in the past. And now, things are tough for me,
but I believe my parents will come around. But today I had a crushing
defeat. She no longer wants to be in my family. She doesn't want any
part of it. I called her back thinking it was emotion, or a
spur-of-the-moment thought, but she did mean it. She says I have to
trust God, not her. I have to go to God and lean on Him, not her.

I can't believe it, she is saying that. She is quitting on me. I
have never felt so alone.