To be intimate with a married man, when my own father cheated on my mother, is not something I could forgive. I could not look at myself in the morning if I did that. I wouldn't be attracted to a man who would cheat on his wife.
Have you ever noticed that anybody driving slower than you is an idiot, and anyone going faster than you is a maniac?
At first, I see pictures of a story in my mind. Then creating the story comes from asking questions of myself. I guess you might call it the 'what if - what then' approach to writing and illustration.