Most people here are dead-stupid wrong. The other commenters are showing serious self-esteem and personal boundary issues and need to be in therapy. So do you.

Why do I say that?

she said in example while I was upset that even if she said that she didn't want to have sex at all anymore, she'd expect me to work round it because I love her

That is abusive. Saying "If you loved me you'd sacrifice everything for me" is abusive as fuck.

She's not trying to stop abuse, she is actively going much deeper into emotional and psychological abuse with statements like that.

Obviously, you're both young. With therapy there's no doubt you could work through this. But do not start standing for that kind of controlling, manipulative abuse now while you're trying to work through things yourself.

Everyone in this thread needs some serious help, but in your case get out and get your head on straight. You aren't responsible for what she does if you choose to leave. If you want to stay and work it out, stay. But if even part of your reason is you're afraid she'll kill herself, you're being manipulated and need to leave.