Is there a free hotline I could call?

My parents are considering getting a divorce and there is no one I can talk to about it because I have no close friends at school and I don't want people in my town of six hundred to know about my messed up family. The closets person to me is my cousin and she is too wrapped up in her boyfriend to listen and my ***** Aunt Cindy would use this information against my mom some how if she found out and she is always creeping around the door when me and Tori are talking. I have been contemplating suicide since the beginning of the school year ( I went through the warning signs today when I was looking around Snopes.com and the had the link posted. I identify with five out of nine so I really need to vent with someone I don't know. ) luckily that has toned down a lot but I keep having thoughts of running away so I can just get away from the drama. My mom keeps asking me what she should do but no answer that I give her is right to her and when I try to walk away or tell her I don't want to talk about she yells at me or tells me to turn down the teen angst. I'm fifteen dammit! What the hell does she expect out of me? And, she didn't start thinking about divorce until her friend Shellie recently got one. Shellie is thirty-three and has a seven year old and has been married for about eight to ten years. My mom is forty and has a sixteen soon to be seventeen year old son and a fifteen soon to be sixteen year old daughter and has been married twenty years. Last time I checked that was a major difference.