[I HAVE A ?. WHAT DO YOU DO WHEN YOU START TO YOU HAVE FEELINGS FOR SOMEONE, BUT YOU KNOW IT'S NOT POSSIBLE FOR YOU TO BE WITH THEM?]

I HAVE A ?.  WHAT DO YOU DO WHEN YOU START TO YOU HAVE FEELINGS FOR SOMEONE, BUT YOU KNOW IT'S NOT POSSIBLE FOR YOU TO BE WITH THEM?

Allright, it's like this.
Im falling in love with someone that I should not be.  She's going through alot of things right now.  Im constantley over there doing what I can to help her out.  We've known each other for just over a year now, we met through a mutual friend.  The person she's with now, he's never there, treats her like crap as if he doesn't care for her. If he does, that's not how you show someone you car for them.  I know she deserves better, but I know I won't be able to be that person she needs?  I know she probaley does'nt feel the same way.

What do I do?   .