Ive been with him over a year now and last night i found out he had been liking pictures of other girls on instagram which were very revealing. I confronted him and his face went red and he hid behind the duvet. I kept finding more he had liked so i said i was going to sleep on the sofa. He wouldnt let me leave the room but after getting past him i went in and got on the sofa. He came in grabbed me and pulled me off onto the floor and started punching me. This isnt the first time hes hit me and he hadn’t apologised. What should i do??

UPDATE

i just wanted to add that im 19 and currently waiting to find out if im pregnant, which he knows about.

I guess im scared to leave because i wouldnt know how to live on my own without him