Boyfriend teases and groping me too much!

Anonymous
When teasing me, he holds me down in a really uncomfortable way, or tickles me the places he knows I'm most ticklish. But I really don't like being tickled, I HATE it, And I told him to stop, and that I'm being serious, but he doesn't seem to get that. He will also grope me in a way to tease me, which you probably don't think is so bad, but he does it ALL the time. It always gets to a point where I'll start yelling pushing him away hard, when he doesn't stop. When tickling me, I kick with all my might, like a reflex, and when I hit him, he goes all "you didn't have to hit me!", then he gets hurt or sad when I just respond with "then stop when I tell you to!". This has happened a few times, over and over, and it ends with the same result time after time.

How should I make him understand that there are just some things I don't like being done to me?

another little problem is in bed... He have had many girlfriends, and he seems to think we all like the same stuff being done to us. He thinks he's so good at everything, when he really isnt. I tried telling him softly, but he just gets offended right away. :/ I don't wanna fake orgasms, or lying that its good when it isnt. Or do most girls do that? Should I just lie?
Boyfriend teases and groping me too much!
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