Is it okay to want to cheat on my girlfriend?
What makes you want to cheat on your girlfriend?
I don't like her. It was a mistake to get a girlfriend in the first place.
Cheating on your girlfriend is a terrible thing to do. If you don't like being with your girlfriend then you should be honest with her and break up. Cheating on her will only make her feel worse.
Why should I go through all that trouble?
I think it will be more trouble to cheat on her since it involves more people. Give her a break up face to face and spare some time for her so you can both get closure to move on.