What should I do about this girl and situation?

So this girl I met a few months ago texted me a week ago to meet up and just hang out. We are both 18 and She has a boyfriend so I just thought I would go and hand out as friends. She told me when I got there that she broke up with her boyfriend so then I started flirting with her a little bit. I took her toget crepes and a hookah lounge where we just chilled and took a few shots. I took her to Washington square park and then time square and bought her some hot chocolate. By this time we're holding hands and then we sit down at this place and I kiss her. We start making out hard and then go outside of her all girls dorm building and just make out for an hour and a half. I asked her to come back to my dorm but she said not tonight but deffinetly some other night. I text her telling her I got home safe (she had asked me to) and then she responded. I texted her again saying good morning and then trying to continue the conversation but she just didn't respond. I texted her at night again inviting her out with a few of my friends (she wanted to know when I was hanging with her). She told she was exhausted from work but maybe some other time. And I just said sounds good. Now how should I ask her to come out again? I asked her and she turned me down with my friends. When should I ask her? And how? She just got out of a 2 year relationship. I know I'm a rebound but it's fine