I'm fantasizing about another man while married
Could you tell me why you're fantasizing about another person while you're married?
I find my husband so boring, he never changes.
People are expected to be faithful in their marriages. Yu should communicate with your husband and tell him what you want, if he doesn't listen you can leave.
It's just fantasy, I'm not really cheating.
You're right, there is nothing wrong with thinking about other men while you're in a marriage and it could be healthy so long as you do not act on it. Sometimes we all need a little escape from our real lives for a moment.