Mmmm if I didn't know what this was about already I'd say that's pretty random.
And people try to change other's because they aren't happy with them the way they are.
They like their looks, so they try to change the personality to match it.
Or they like their personality, so they try to change their looks to match it.
And when that doesn't work, the other person is left to wonder what the hell* is wrong with them when in all reality nothing is.