Is it normal to be angry with my bf and hit him all because of a dream?

You shouldn't hit him, that's abuse.

Good for you.

Everyone knows that dreams are always true, so dump the cheating bastard, and tell your friend she can go fuck herself.

Alternatively, you could grow up and try to get a grip on this weird thing called reality.

No, you sound like a shithead.

If you're driven to abuse your partner over something your mind created, you shouldn't be dating in the first place.

No, that's not normal.
Whatever happened in your dream is all fantasy. It's all just an imagery of the mind that occurs when your brain goes into imaginative thoughts that aren't real. Just know it was all a dream and you need to calm down.

It's a dream. Not real life. So why would you hit someone for something they never did? Idiot.

You should dump his sorry ass. Then set his house on fire. How DARE he cheat on you in a dream!?

My girlfriend got mad at me for the same thing, I never thought my mind could be so full of fuck. I should of ran right then and there. Completely unable to control her emotions whatsoever.

Well as long as you understand it was just a dream lol