I have been unfaithful, and it feels kind of good to let someone know.
Are you being honest with me? What makes you feel you're unfaithful? Have you done this more than once?
I'm a person with a developed sexuality and I crave anything sexual, so yes.
Being unfaithful is a form of weakness and failure, but owning up to it is the first step to moving on. Talk to your partner about it so that you can both forgive your indiscretion.
It's fine, my partner doesn't mind and she's not going to leave me. She wants no part of sex with me.
Weather it is about sex or not, unfaithfulness is really wrong. If you agree with each other about it that might be a different case. I would just prefer everyone stay with each other weather they have sex or not, as there is more to love than just sexual things.