You disgust me. Go on and live with yourself. Do it. Go.

Pollyamoury

OP, I had a friend in a similar situation. Although, my friend was more obsessed with her "not" girlfriend (they were very close **** buddies) than the other way around. I pegged this girl as a user the minute she walked into the house. She got into it with her boyfriend one night who is ftm trans and was also bi-polar and schizophrenic. The girl's mom called my friend, who was living with us at the time, begging for help because the "not" girlfriend's boyfriend had "a bad night" screaming he was going to kill them all and the next thing we knew, my friend was trying to move her in with us. Our other roommate put her foot down and said no. I wasn't all that thrilled either since they "weren't having sex" loudly in the room next to mine. I get back from a weekend in New York and my friend has moved out with her "not" girlfriend. Well, "not" girlfriend wrecks my friend's car, because she was huffing and blacked out behind the wheel. Then she started messing around with some other girl. Less than a month later "not" girlfriend sends a text out of the blue to my friend that she's moving to New York with her new girlfriend and if she could just "hold on to her stuff for awhile, that would be great". That's what it took for my friend to learn her damn lesson about dating crazy bitches! This lesson was drilled in harder when my friend's mom found "not" girlfriend's weed stash. LOL TL:DR Don't date crazy bitches. Its not worth losing friends and respect for them to screw your life up later.

Get away from her. I know this probably is none of my business, but I was in a relationship like this and my only regret is not ending it sooner. Right before I left him for good, he raped me. These people aren't stable and staying in that relationship will make it worse for you. Trust me. I am constantly scared I one day will receive a note telling me he killed himself but I promise you it's better than being stuck with him.

That's not fair to you at all and I sincerely hope she gets help for her issues. Maybe try talking to her friends about it?

I hope you dumped her pronto. The psychological manipulation will only get worse

Was she saying being in a relationship with you was the equivalent to swallowing pills and then she says because she doesn't handle breakups well how do the two things correlate? just my thoughts.

oh the only thing keeping her from swallowing a bottle of pills is being in a relationship with you. I should have read more carefully

I think she needs real help if you think she might try to kill herself. It might be wise to talk to her parents and tell them how far you think she might go? I don't know. If the relationship is wrong please don't feel like you have to stay with her, but it does sound like she needs help. It is a horrible situation to be in OP :/ You can talk to Samaritans - they can be helpful (anyone can talk to them about anything - not just suicide).

She is very lucky to have you, but what is this relationship doing for you and your mental health?