Is it normal i still have feelings for him?

It's very long and to understand the full story has to be told. I was going out with a lad and things were going great but then one night we were out walking and three girls that i do not get on with came and started to attack me, but instead of helping me my boyfriend ran away down the road saying he was going to get help, but he didn't and i ended up being very badly assaulted, my face was literally purple with bruises. I was so mad the next morning i dumped him because i thought i couldn't trust him. About a few weeks after this he kept apologizing to me saying how much he loved me and needed me back so we eventually did. Things weren't great as people kept getting in the way spreading rumors and the like so we ended up breaking up again. About a month after he again began telling me all the stuff again, but this time I didn't want to so I said no but we ended up getting in a massive fight where a lot of things were said including him saying "You're such a bitch, you know you deserved that beating you got, you break my heart and you don't even care, you're a waste of fresh air, you should go kill yourself because everyone would be so much better without you".
I've been ignoring him for 5 months straight now and have had a failed relationship and so has he. Now we have started talking again and he's started saying he still loves me and if i ever wanted to get back with him he wouldn't hesitate. Thing is mt friends are telling me not to involve myself with him again because of all that happened. But I still have some feelings for him and he always made me so happy.

Is it normal that I still have feelings for him after all that happened?