I have a dillema, and it involves a hot guy!

Okay, so this guy I knew back in 6th grade was a real jerk back then, and he and a bunch of other students bullied me a LOT!!! Well, he wound up moving to another school and I hadn't seen him since 6th grade, which was about 4 years ago, UNTIL NOW!!!! He moved back to my school district and he's in my World History class. One little problem: He's REALLY hot! But I keep thinking, "How can I like this guy? He was a jerk! For all I know, he's STILL a jerk!" Unfortunately, every time I try to convince myself that I don't like him, I wind up thinking about how cute he is! He might've changed since 6th grade, but IDK, and I really haven't talked to him that much to find out (not that I've had a chance to...stupid classes...). But I just don't know what to do! Oh, I'm trying to upload a pic of him so you can see what he looks like but it's not working. Lemme try again later.