Why do most guys try to impress a girl even though they cannot be with her?
This is how nature has intended males to be. We are not so much different than animals in some aspects. If you look at animals, all of the males try to have sex with the female. The strongest one would most likely to win the mating battle but still weaker ones try their luck as who knows when they might get a chance to mate the female. The same thing can be said for human, all of the males try to impress the girls as us guys have been programmed like that. (females are weird creatures, they often fancy the ugliest guys) so, even those who are supposedly less suitable, still have some chances! lol But sometimes there’s a little error that occur, instead of impressing other females some of us end up impressing other males!