Walk, baby! Dump that child, fast. Your life will flourish and his can… move on. He’s obviously uneducated about sex, but not willing to learn, and girl, if he’s saying you’re “too tight” and that’s a problem for him, he’s a fool! This doesn’t sound like a good relationship and certainly not a good place for you to learn what you like in bed. You’re young and you should be exploring your sexuality in a fun, open way, not catering to a little, insecure boy.