Help me please!!!!!

I feel completely detached from my boyfriend. About a week ago I found out he was lying to me about small things and then while we were having a fight I slapped him and he hit me back. Now I know it’s not ok for me to hit him, but it’s also not ok for him to hit me either. Either way since all this I just feel like I don’t even want to continue our relationship at all, but I love him so much and I’m so confused.