Does he like me?? Or is he just a flirt?

He asked for my number and at first he texted me quite a bit. He even asked what I was "up to over the weekend"...so Idk if he was subtly asking me out or what. He messages me saying "hey y". When he sees me walking in front of him, he'll grab my arm and yank me back and pulls me really up close to him. One day he did this and he didn't even say anything to me, he just grabbed me and looked into my eyes lol. When I couldn't get my friends ring off once, he came up to me and just took my hand and took it off for me. He also says that I'm "carrying" his baby. I told him once that the "baby" died and a few days later he punched me in the stomach (it kind of hurt too). I said ouch and joked that he killed the baby and he said in a really mean tone, "you would've said it died anyway." Do you think he was mad because he's trying to give me hints and I'm not getting it? I"m so confused!