My girlfriend broke up with me for no reason?

I've been dating this girl for about 3 and a 1/2 months. She is my second girlfriend. I've never liked anyone more than her before. We couldn't see each other for about a month because we were on vacations. Yet she went to Mexico for a week with no serivce or anything. When she came back she started acting different. We saw a movie and stuff but didn't hang out for a week until Wednesday Night.

On Wednesday about 20 minutes into the movie we talked for about a half hour and she said lets just try being friends and she never gave me a reason as to why she wanted to break up. The movie was awkward for the rest of the movie luckily i had a friend their as did she.

After that night, she texted me about 30 times and said she made the biggest mistake ever, and how shes never liked anyone more than me. She asked me back out, after my heart being broken I said let me think about it. She didnt stop texting me even when I feel asleep so I woke up to the best messages ever.

When I woke up, I got a text from her a hour later saying actually forget it. She got mad at me and said if i have to think about it lets not.

Ive asked her back out, and I don't know whats going to happen. I like her so much, and she likes me too.

I need to know what to do.