They are 20 and you're 23? That means in mature years they are about 23 and you (and most dudes) are about 19.

Girls say shit that we dont identify with because the age old Venus and Mars BS. You know it, I know it. Now if you want to have fun and be a 23 year old, quit caring what they say for a few years and have some fun.

You're gonna be stuck having to listen to them plenty when you get older. Enjoy it while you can, just smile and nod, then proceed to rail.