"You Make Me Better"

I never understood when people said that a person makes them better. Because I mean, in reality, only you can improve your behavior. They are not whopping you, making you make the right decisions. You must be with someone who challenges, who you see as competition. Who you know, if YOU'RE with then you gotta up something about yourself because your regular game ain't working. I'm not saying they're out of your league necessarily but there are things in them you don't have in yourself.