I've totally fucked up and need advice

So here's my story, I started dating this beautiful girl about a month ago. It was going super until about two weeks ago. She told me her ex boyfriend had come to see her but she said he wasn't going to be an issue. Then over the past few weeks she started acting very shady to me, not responding to my texts that often, turned her read receipts off and started mentioning her ex more and more. Our sex life together was very good, always reciprocated when I inititaied it and she often initiated it too. When we were last together on Tuesday she told me I was pushy about sex and everything, she also said there was something once she told me she couldn't take it back, so I assumed that meant she was cheating on me. So I haven't spoken to her since then until today. I wanted to say what on my mind and tell her off because she was talking about this guy so much and posting stuff with him and everything. She then proceeded to tell me she was sexually assaulted this past January and tried to commit suicide. Had I known this I would've tried to be much more sensitive to her situation and NEVER would've said anything like that to her. I know it's probably hard for her to talk about but I feel like I'm you're jumping into a relationship as soon as that situation happened with someone and being so sexual, this is something she should've mentioned. Now I'm worried she's gonna try and hurt herself again because of what I said, what the fuck do I do?