Is it a common thing for taken guys to be like this?

i’ve noticed that i could have great convos with a guy, the sexual/romantic vibe is definitely there, sometimes we’re making eyes at each other. but then out of nowhere i found out they have a girlfriend. and if it’s not something like that, i could make eye contact with one down the street and they give certain looks. i’m not a homewrecker at all, nor do i ever plan to be. loyalty is something i don’t play about. but i’m just uneasy at how common this is. does that mean i give off some kind of side chick vibe? is this how taken guys naturally are like?

Is it a common thing for taken guys to be like this?
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