Could I possibly go to jail because of parents please help!?

Okay, long story somewhat short me and my girlfriend have known each other for almost 4 years and been together about 6 months..please don't say we don't know what love is and that's not long enough to fall in love. We have been through SO much these past few months and are very close..she's 17 and I'm 17 as well. Okay, now to the point, my girlfriend's parents hate that we are together they were totally fine with us being around each other and seeing each other until we verbally said we are together, but they are sitting there trying to act like they didn't know, they caught us making out and all that. Now that I'm turning 18 in only 5 days, they are trying to file something against me, but I've already talked to the police department and they said they can't file statutory against me after my mom explained the whole situation. My girlfriend is now living in her mom's boyfriend's house which by the way the boyfriend's sons do drugs cook crack in the house etc.. and my girlfriend has two younger sisters around all of that. Now her mom is supposedly filing an injunction against me..can she legally do that? I'm doing nothing wrong the mom is making up lies and told my girlfriend she will lie to the police to go as far as she can with me..she wants me locked up and even threatened to kill me which by the way she lied her way out of that also. It's like the cops are believing her about everything, but she's making up so much lies its ridiculous, please help! Oh yeah, I'm in Az and the AOC is 18 here she wont be 18 til August please if there's anything I can do maybe get her out of that house or something, just anything, please tell me.