My boyfriend always grabs my wrists?

Is it normal or ok that my boyfriend grabs both of my wrists when I try to leave the room or do something but then he says stop what i am doing and grabs them?
When he grabs my wrists, its really hard. Especially one time I said let go but he didn't. one time grab my face so I could face him (but i didn't want to face him) it was very sore and he wouldn't let me go.
I read that physical abuse are grabing, shaking, kicking etc.. so im wondering does what my boyfriend do is abusive? I don't think so because one time he did grab my wrists soo hard they feel like they were going to break and I told him your hurting me and almost cried and he let go though.
Soo... what are your guys thoughts?
Please and thank you.

p. s also how can I get used to he's sense of humor? he's humor can be mean sometimes but he like that to everyone else too. Like he says to me your stupid but i still love you.
But he jokes about it, and he does that to his friends too, but i just want to know how i can i not be so emotional about it?
Thanks
My boyfriend always grabs my wrists?
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