Being comfortable enough in your relationship with a girl to tease her (playfully I mean) means you have a better relationship than you would if you were comfortable showering her in compliments.
I personally find guys who tease me jokingly more attractive than the type who just tell me I'm pretty constantly. ;P Maybe that's just me, but it's cute. Plus it just feels more flirty to me, I guess. Idk.
This is the second post of this series I made. Expect more. :P