Creepiness is almost entirely a consequence of dishonesty, imo.

If a woman says she likes Taylor Swift, and then a guy says, “Oh yeah, I love Swift too!”, but he’s clearly full of shit, that’s creepy AF. Tons of guys think they have to lie and manipulate to get women to like them, and that’s very often what makes them creepy. They don’t know how to actually be honest and confident… but then their consistent failure makes them even more insecure, which only spirals the problem in the wrong direction.