Should I fight this kid?

Alright so at my lunch my table joined with another table about 2 months ago, and since none of them knew me so they never talked to me, which was fine, but about a week or so ago, this kid out of nowhere starts to give me a hard time. It started with when we were sitting at lunch and he made a comment saying I was molested by my dad (which I wasn't) and the same day we were waiting for the bell to ring at lunch and he said I was undesirable. A few days later at lunch we were talking about senior prom, and how they all left early and he said that this girl at our table and I think the same seniors are hot (implying I am gay, which I'm not. The next day (probably yesterday) I was with my friend at my friend's locker and he said " I sicken him" He never physically hurt me, but he's like 4 or 5 inches taller than me. What do you think? Should I fight this kid, or leave him alone? We're both freshman guys in high school.