Honestly, that's the way I feel (or felt)

My girlfriend and I had a chat, a few hours after I posted the reply.

She said she didn't plan to hurt me and all.

The thing is, she finds it easy to kiss and spend long hours with other guys in her apartment (something that doesn't apply in a monogamous relationship). Don't ask me what they do together. I confronted her about it and she said I should grow up. That no one has an issue with it.

Well, I decided that since it was the way the world works, I should stick with it. A friend has been hitting on me for a while now. She has a boyfriend so I have issues sleeping with her. After the quarrelling two days ago, I decided to check out this friend (and then decided against it at the last minute)

Well, my girlfriend is back. I'll watch her behavior for a while. If she continues seeing other guys, I'm going shake off my monogamy and see what's special about changing partners