If i was an asshole would i be more attractive

You don't have to be an asshole or a jerk.
Just confident and with good self steam (is that how it's written?)

Being a nice guy is fine, what you don't want to be is a door mat.
But there's a lot of ways to be good and nice without going to the extreme of being a door mat.

Also, as ItDuz said, you don't want the kind of insecure girl who ends up with an asshole. Be patient, she will appear :)