Too complicated to leave?

I have been with my boyfriend for 3 years and haveen been friends with him for 6 years before dating. Now together we share a beautiful daughter.
Today, Valentines day was the worst day of my life. He actually believed I was cheating on him with a friend of mine.
He was really upset and punched me in the face, kicked me while i was on the floor, spit it my face and pulled me down 3 steps. I also have black bruises on my arms and scrapes and bruises on my neck.
Worst of all, he did this infront of my babygirl which made her cry.
I feel like I still love him. He has always been there when I needed him and always encourages me to do my best. He has never let me down and has never hurt me before.. but this time it feels like hurts too much to forgive him. I don't know what to do anymore.. someone please give me some advice.