Is it normal not to be gay but still flirt with good looking guys?

Its normal and soon you will get hooked on other men and after you get sucked off and start sucking cocks yourself that will be what motivates your entire life. Good for you. You are clearly on your way my boy!

Perhaps you have a hidden desire that leads you to act that way, toward other men and if so, then for you, it is as normal as can be. I like looking at both sexes and admiring those that I find attractive.

Welcome to the spectrum. It's normal. You may like to flirt but never want to go further... It just means you slightly away from the absolute straight part of the spectrum. But you are still far away from the bi and especially gay sections.