Why was he teasing me?

I was hanging out with my hot guy friend and he kept teasing me in a fun sort of way. I got a new purse and because of the material it has that like new car smell.and I know its only temporary.and he kept teasing me about like off and on during the time we were hanging out.it wasn't mean or anything.it was actually funny but why was he doing this?
Why was he teasing me?
Post Opinion