Please help me (girl help)?

I need someone to talk to, like someone from the suicide hotline or anyone I could talk to for free. I'm have a really stressful problem right now; I love this girl so much, but I don't think she likes me. I love her for her personality and her looks as well. I just feel like killing myself because I might not be with her. Please help me; I need to talk to anyone professional, i.e. a free-of-charge counselor or anyone. Thanks.