when a man says" i like teasing u"

[marrimy]

that means......?
why does he want to tease me?

and when a man asked" if u r jealous of me seeing other girls?" why he says so

can a man say so to a female friend? then why he says so

[manchild]

If i'm reading this right and hes a male friend of yours, assuming he's single:
I like teasing you: he's just flirting with you (keep in mind that he could be just a flirty/playful type of guy with everyone or he really wants you)
Are you jealous of me seeing other girls: He's trying to see if you like him sexually/want to potentially be with him. OR he's just after an ego stroke from you.

[bulrush]

There are several kinds of teasing, one of which is verbal. This means he is comfortable with you and you two have a similar sense of humor. But don't assume, just from this, that he wants to date you. You need to look at other things he does.

and when a man asked" if u r jealous of me seeing other girls?" why he says so

Now when I see THIS I think he wants to date you and see other girls. He's just being honest about wanting to see other girls.