For reference M24 and F19. This girl is textbook PUA bait.

I met this girl a little over a year ago (last June) and she was pregnant at the time. Kids scared the shit out of me, so I didn't pursue a relationship, but we did have sex a couple times. Right before she had the baby she found a good guy willing to assume the roll of father and she fell for the guy. Fast forward a year, he cheats on her, gets caught, and she finally breaks up with him after trying to make it work for a couple months. I'd grown up a lot since then and me and this girl are like the exact same person, so I start to pursue a relationship. We'd already been talking for a few months and I fell hard. We start hanging out a lot more, cuddling, holding hands, saying sweet things to each other, but she straight up told me from the beginning she wasn't ready for a relationship and she might go crazy for a little while. All of her words are telling me to run the fuck away but all of her actions say she's falling for me. So 2 weeks ago I asked her if she'd done anything with anyone else. She said yes. My heart sank but I played it off cool. But 2 days later I hit my breaking point, and sent her a long text message saying I think we should be friend, that I can't handle her with other people, and that i needed a break from her before I ended up hating her or made her hate me. She replied with "I agree, maybe we were just meant to be friends". I took that really hard and sort of threw a tantrum. I apologized a few days later and she wasn't mad or anything, she knows how I feel and understood, but when I asked if we could go back to how things were before she just said "I don't think thats a good idea, things always get weird".

So here's the deal, I'm utterly obsessed with this girl. I cannot just be friends with her. I think about her most of the day and dream about her most of the night. 2 nights ago I talked to a mutual friend and she said the girl told her, she wanted to give me a chance but now she thinks we're just friends and shes talking to someone else. With most girls I would take that at face value and give up, but she's kind of crazy and changes her mind a lot. We're supposed to meet and just talk tonight, so my question is, what can/should I say to get things back to before?