What should I do? I have a wonderful boyfriend but I want to have an affair.
If you have a wonderful boyfriend, why do you want to have an affair?
I want some excitement in my life.
That is kind of sad. You're just hurting yourself if you have an affair and ruin a great relationship.
I have the right to have an affair, why shouldn't I hurt myself?
It's likely that both you and your boyfriend would appreciate more excitement. Instead of ruining a good relationship, you should find a way to bring excitement into it. If you cheat on your boyfriend now you will only have regrets later.