Do I owe him an apology? Options

[libertie]

First of all, hi Dustin, if for some reason you come across this. Second, I'm well aware that I'm asking for advice on the internet; however, I know CB people pretty well and am looking for the one or two positive and helpful responses I will hopefully get out of this. :)

So I've been seeing this guy for about three months, and we're both really happy with how the relationship is going so far. We haven't really had any problems. I will admit that I have some jealous tendencies - I have been cheated on at one point in nearly every relationship I've been in, so it's not exactly easy for me to trust someone 100%. However, for first time in a relationship, I actually feel like I don't have to worry about that with him. I'm perfectly confident that he would never do anything to hurt me and that he's satisfied where he is. Still, the thought of him being with anyone else - past, present, or future - drives me insane. I know I'm already sounding pretty pathetic, but hear me out. I never post in this forum, so I think I get a freebie. :P

The deal is, this morning I came out of my first class and I was looking for him. When I came downstairs, he was standing near the elevator and he and one of his (guy) friends had this girl sandwiched in a hug which lasted for an unusually long time. I looked at them for a minute, then turned around and walked off without saying anything. I think the reason I got so upset is because I've seen this girl come up to him a LOT and hug him. It's like every time she sees him she has to give him a huge hug that lasts for like 30 seconds. At first I didn't really get that upset about it, I mean it bothered me, but not enough to say anything. I guess when I saw it this morning it just finally broke me. >.<

So later on he asked me what was wrong and I got pretty pissed at him because he couldn't think of a single reason that I'd be even just a little bit upset. I calmed down and explained myself, and we eventually came to sort of an understanding - he said he'd stop letting her hang on him like that, basically.

My question is, did I overreact? I think I made him feel kind of bad, and I've been thinking a lot about it so I guess I'm kind of worried that I took it too far.