Im 18 years old with my 17 year old girlfriend and we are gay but very happy with each other. Her mom found a note I wrote to her and found out we were together and since then her parents hate me. They came to my house telling me to back off and that we don't know what love is because we are young. I tried to show them that she is very happy but they believe I'm hurting her and that I am obsessive but they are the ones controlling her. They took away her car her phone and iPod so she bought her own phone but they make her turn it off at 11 pm every night and they call her constantly. We are allowed to see each other 2 hours a week but today her mom said half hour and we aren't going to see each other. Her dad keeps telling her that he is going to kill himself and they are alcoholics. I just don't know what to do. I love her and I want her to be safe and not with them.

Leave her alone until she turns 18 and can move out of her parents home.
She is a minor living in their home being supported by them. When she turns 18 she can hopefully get a job and be on her own.
Get her parents time to get used to this, Leave the girl alone until they calm down.