<human>: Can you provide a brief overview of the text?

So to keep it fairly brief, me and my girlfriend of three years decided to break it off and separate for a little while to re assess things and decide if we wanted to continue being together. It became increasingly difficult for both of us to stay away from each other and we started having sex again after a few weeks. This was probably the best sex I've ever had with her and it seems that it was mutual, most likely because the feeling of not being together made it so. Another month or so went by and I ended up hooking up with a girl I met at a bar and I completely regret it. I felt so awful that I told her as soon as I could so she didn't hear it from someone else and she has been so broken up about it ever since. I feel so guilty and awful about it because it's not who I am and I'm still in love with my ex and I have really been feeling like she is starting to pull away from me. I don't want to lose her.

I'm asking if anyone else has been in a similar situation, and what can I do to get her back? Is it just going to take time to heal the wounds, or can I take other steps?
<bot>: Girlfriend of three years and I broke up, continued having sex, I had sex with another girl and hurt her and Now I really want her back.