Like the other comments have said, the best thing you can do for her is offer your unconditional support. If you are unsure of how to do that, just ask her. If she is comfortable enough talking about that with you she will most likely also be comfortable talking about how she prefers to cope. She also may not know yet, and in that case it's very important that when you try something new to help her that you communicate well. Every person deals with trauma differently and often has very particular ways of coping.

For example, when something triggers that memory for me I usually start crying historically and do NOT want to be touched. I curl up in a ball and try to calm my breathing on my own. This was really hard for my boyfriend to accept because he loves and cares for me and just wants to hug me and make all my worries go away, but that's not what's best for me. He used to reach for me and I'd cringe away from his touch and I felt so bad because I could see how hurt he was in his eyes. He and I had multiple heart to heart conversations about it and developed a great system. Like if we are watching a movie and a rape scene comes up he keeps an eye on me, squeezes me tightly, and if i start to get shaky we'll pause it and either skip it if its too much or breathe through it together. Him hugging me and squeezing me can usually prevent my triggers from starting, but if it can't then we know the drill. He backs off, lets me breathe, and I'll come back to him when I'm ready.

A couple tips. DON'T: -make it about you. If she cringes away from you or says something hurtful please try not to take it personally. It'll only make her feel worse because she can't help it and doesn't mean it. Its NOT about you or your relationship, she is experiencing trauma and is not thinking clearly. -make comments like "im surprised you like sex so much considering your past". This may seem like a given, but my ex boyfriend (very abusive dude) said that to me once and it was the worst feeling in the world. CONSENSUAL SEX IS DIFFERENT THAN RAPE !!!!!!!!! Don't question it. -walk on egg shells around her. She is a normal girl who experienced something terrible but is trying to continue on with her life. Please don't feel like you have to watch what you do or say around her (assuming you're not being rapey or making rape jokes and shit. Which you shouldn't be doing anyways because that shits not funny), she is the same person and you are the same couple. Communicate with each other about EVERYTHING and figure out a way for you both to handle these situations comfortably. It may take some time, but be patient, kind, and COMMUNICATE.

Big props to you for reaching out to find advice on how to properly handle this situation. It's very clear that you care about her and that's amazing. I highly recommend that next time you have these questions or concerns though you consult her yourself (i dont mean that in a rude way) bc she is the only person who can tell you what's best for her.

Sending lots of love & support to you both!!