Fight in a mall

Me and my boyfriend were at the mall having fun a few days ago he went to got look at somethin just for a minute and theese 2 guys came up to me and started to flirt with me and jacob (my boyfriend) saw them and broke one of their arms and the other ones...

jaw is he overacting he kinda scared me

Sounds like he's more than a little more than possessive/obssesive, most guys would have just warned them off with verbals and an icy look, could be he's being over protective too, you're gonna have to calm him down , or it may turn nasty towards you someday...
Franklyn

how am I suppost to calm him down

That isn't your job, actually. Ask yourself if that type of behavior is something you even desire to be around. Maybe, search for someone who is not so quick to be violent.

Then again, maybe he won't be so violent when he finds out, that kind of thing turns you off.

Tell him he doesn't need to go so far because he has nothing to worry about with you cheating. Say like 777 posted and tell him it bothers you...