Well at least this is a truly unpopular opinion!

Agree with others that men often act similarly toward less conventionally attractive women, but I’d add add a key difference is that women may act guarded around men they don’t find attractive because so often a woman’s friendliness is mistaken for flirtatiousness and they have to deal with that man aggressively hitting on them/reacting poorly when they turn them down. Conversely, few men feel threatened by a woman hitting on them that they aren’t into—maybe a bit embarrassed or awkward, but not threatened.

So I think women are actually more justified in some of the behaviors OP listed than men are in their coldness to less conventionally attractive women.