<human>: Long story short, I had a fight with my girlfriend, we didn't speak for a week and she kissed another guy, not once but three times.

We had long talks about this. She said she thought the relationship was over and there was no future for us. I think I could get over that somehow, but I have another issue with this.

I am very inexperienced. I used to be extremely shy and self-conscious, had my first kiss and girlfriend at the age of 21. Now this girl is just my second girlfriend, the second girl I've kissed and the second girl I slept with. She has a little bit more experience than me. I'm her third sexual partner, but she has kissed plenty of guys in the past. I've always had an issue with that but I managed to live with it because I really like her.

Now this happened and it became a much bigger issue for me. I could live with her having more guys in the past because now we had a thing together and I was the only one who could get close to her. But now I feel like she has moved a step forward and I'm left behind. I gave up on getting other girls because I wanted to be with her, but now she shared this intimacy with someone else.

I kinda want to go out and make out with some random girl, not to do the same thing to her that she did to me, but just for myself, so I feel like we're on the same level again. At the same time I know I can't expect her to be ok with that. How do I deal with this?

Can you give me the gist of the text in a nutshell?
<bot>: Girlfriend more experienced than me, kissed another guy after we didn't talk for a while, now I want to make out with other girls.