<human>: Can you condense the text into three sentences or less?

I went to college last September, and instantly hit it off with the most beautiful girl I have ever seen. We became friends, and around January, began dating.

Things always felt right, perfect even. We shared the same circle of friends, gave each other space when needed and was close by when needed. She is the nicest girl I have ever met.

However, yesterday my best friend came up to me and told me outright that he had reason to believe she had cheated on me thrice. Apparently it was the recent gossip between our social circle, and he told me as soon as he heard it. I asked what the evidence was and such, and whilst being thankful that he told me the second he heard something, told him I trusted her and would not break that trust for silly gossip.

However, today when she came over to study for a bit, I looked at her more carefully, but still could not believe she would do such a thing. Eventually I worked up a bit of courage and asked her out right but still politely 'Hey, you know, people have been saying you cheated on me. I don't believe it, of course, but it would sound better coming from you' and looked into her eyes. 

She replied and stumbled for words, obviously lying. After some pressing she admitted to me she had, three times (two different guys). I pressed for more information, and the most recent one was 3 weeks ago. She cried a lot and threw herself into my arms and I was dumbfounded. I half held her close half pushed her away, not thinking she would do something like this. I eventually told her I think it best if she could go. 

After she left, I was still in shock. I have not cried or anything, but that does not make it any less upsetting. I have no idea where our relationship goes from here, she made it quite clear she wanted to continue the relationship promising she would never do it again and such. 

Now I am here, writing my story to you. I just need some advice I guess, thanks in advance Reddit.
<bot>: Girlfriend of 4 months has cheated on me thrice. She wants to continue the relationship, I am dumbfounded she cheated on me. The relationship (Other than this) has been perfect