He laughs and laughs, always teasing me.

If he likes to tease you, it is probably because he likes you. That's why he teased you. For the person you like, you will tease him inadvertently. It is because he likes you that he teases you. He can't tease you for no reason. You should cater to him. Make him think you're being teased by him.

It depends on how much boys like girls. Basically, if a boy has slept with this girl, he has got a lot of satisfaction, and he will not have a sense of pursuit for this girl at first, so if so, the boy will soon have a sense of disgust for this girl, unless this girl is beautiful and makes her feel impulsive many times, so if it takes a long time, he may break up soon, if it is not a beautiful girl.