Cheating...

Amron
Hello ladies! This has been an issue for me for about two weeks... neither of us has actually cheated but I want to. Now, before anyone says anything, I know it's wrong and I know if I wanted to do it I should just break it off with him. And yes, I would be mad if he even thought about it too! 
Things between us are different, we've been together for four years now and I feel we're stuck in a rut. I know there's no excuse for cheating. It's just something I've been thinking about... I do love him dearly! 
I just want to know what does it feel like after you've cheated? Did you tell your partner? Or keep it a secret?