So angry I can't breathe !!

Molly
I've never been this mad in my life. My boyfriend has not been a huge help since our baby girl has been born June 5th. He sleeps through her cries at night and snores so loud I've had to stop myself serval times from punching him in the face. So I have our daughter day in and day out minus when he gets home I get one little nap. WHICH IM NOT COMPLAINING ABOUT lol anything is better than nothing!!!
Well I'm strictly breastfeeding and pumping and during my nap today he decided that he was going to give her a formula subulmint (I know I spelt that wrong). Didn't think to ask me!! The mother!!! The one that takes care of her!!! The one who works as hard as she can to keep up with breastfeeding and pumping!!!! Its only been three weeks and I try so hard!!! 
So my question to you guys, I have a right to be this angry right??