Please help, I just need someone to listen...

Hey, so I have a kind of long story, but I'm desperate, so I will greatly appreciate anytime spent by whoever reads this. I'm a lesbian, who is in love with her best friend, who is bisexual. When we first met, she fell for me (which she only recently confessed) and at the time I was talking to another girl. I kepty distance physically and emotionally from her to avoid heartbreak because I would've NEVER thought she would fall for a girl like me. She also loves a guy, lets call him Steve. Her and Steve were together briefly last year but he broke her heart, and hurt her plenty of times in the past.She always could Come to me with her problems and I was always there to listen. I constantly tell her this guy is no good, because he treats her with disrespect and is overly clingy and possessive. He left the country leaving me and her with plenty of time together, and I quickly fell for her. I kept my distance still because I didn't think she felt the same way for me. He returned and sure enough, she started talking to him again, leaving me behind for whenever he hurt her again, then she would Come back and I always had open arms and listened to her. Recently, I confessed my love to her and she told me that she loves me as well, but also loves him. She told him this, that she loves me, and now he is even worse. A few days ago, we were out at the bar and I casually put my arm around her and flirted with her, but we always do this, even if it's just as friends. At the end of the night he approached me in a fit of rage, tellin me to "not be so touchy with her" and yelling at me in front of her and a few others. My best friend pulled him aside and tried to talk to him and tell him to cool it. I was deeply hurt and embarrassed, and I went home. She apologized a lot to me and told me she was done with him if he doesn't back off. He then proceeded to message me saying things like "don't touch her when I'm nearby" and "you can have her when I leave" (because he is leaving to another country for a few months) and also "I'm going to make sure you are still in her life as a friend only". The thing is, they arent even together! All of this sounds possessive and disrespectful to me and her. Now, she has forgiven him (once again) and now I can't even be around her with him because of the tension created. I don't know what to do anymore. She constantly tells me she loves me but I don't feel it anymore, I feel as if she would rather have this disrespectful possessive guy than a girl that treats her with nothing but love and respect. What do I do? I feel like the pathetic lesbian, who is just a rebound for when things don't work out with the guys she talks to.

Tell her you feel this way or go out and meet someone new start spending time with them and then your best friend will leave him and not contact anymore with him when she realizes she really wants you