My girlfriends mom is manipulating my girlfriend and sabotaging our relationship?

First off, I’ve done nothing wrong to the woman, and i’ve done nothing wrong to her daughter. Her mom hasn’t liked me from day 1 and seems to have a personal grudge. She constantly tries to sabotage our relationship ship and now she’s playing hardball and has decided to throw her an ultimatum. Me or her. Well my girlfriend has chosen me but is now suicidal because of her mom. My girlfriend is taking all her aggression out on me and treating me bad because she’s literally gone mentally insane and has lost it due to her abusive and manipulative mother. Her mother won’t speak to me because she’s a coward. Honestly i’m almost ready to throw in the towel. It wouldn’t surprise me if this woman put a hit on me. How the hell do I handle this?
My girlfriends mom is manipulating my girlfriend and sabotaging our relationship?
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