My girlfriend has emotional problems and is physically and mentally abusive - what can I do?

you cant change someone unless they want to change and it doesnt sound like she does. im sorry to say this but her saying things about suicide and such are ways of makin you feel sorry for her so you wont leave hint this is her controlling you with pitty. you never know what you have until its gone so why dont you just leave and maybe in the lack of your presences she willl change to get you back if not with what you described i dont think she would have much luck getting another guy. most men will NOT put up with that i mean i know my bf wouldnt hope this helpd and good luck!!