I'm going to assume this is tongue in cheek because I know you are well aware that plenty of women in this situation do not have side guys and
plenty of women with men hotter than themselves still have side guys
I do not necessarily mean using your current mood/emotion to make a decision, I mean factoring in emotion to the decision. You can logically derive what decision will create the greatest amount of net happiness for you. Therefore, you are considering emotion in your logical decision.
"I am not going to get married to a woman because I don't want to be in a slave-slave master situation that will make me unhappy and I will use this argument to cover up my own homosexuality" is both a logical, emotional, and factual statement for you buddy