<human>: Give me the gist of the text in a nutshell

I met my boyfriend when we started working for the same company. At the time, he had a girlfriend. I had a huge crush on him but tried to ignore it because I knew he was dating someone. On a night out with some coworkers (my now-BF was not there), I ended up hooking with another guy from our company (but in neither of our departments - we both had met him once or twice prior to this). We slept together. That was the end of it, we were both just jonesin' for some sex I think. I thought it would help me get over my crush on my now BF, but then about a month later he broke up with his girlfriend and confessed he had feelings for me. After about two months, we started officially dating. We've been together now for 2.5 years, very happy, in love, and working on building our future. The last year has been long distance (I found an awesome job on the other end of the state but it didn't work out), but now I'm moving back to our hometown.

He knows I hooked up with the other guy before we started dating. We hung out with some of my friends shortly after it happened and they mentioned it. He doesn't know we slept together. I don't work for the same company anymore and neither does the other dude, but my BF still does. Every now and then we see the other guy. He's a nice guy, a bit stuffy for my tastes, but whatever. The point is, I wonder if I should tell my boyfriend. One the one hand, why tell him so long after the fact when it's a non-issue - I never had feelings for the other guy, we don't see him very often. On the other hand, if he found out from a friend somehow (my lady friends can tell some pretty crass jokes ...) I think he'd be pretty hurt that I didn't tell him. I guess this is on my mind because I'm moving back this weekend, and the likelihood of one of my old friends making a joke about it in front of him is going to increase.
<bot>: One-night stand with a coworker before getting with current BF, almost three years ago. Never told him, but worried he'd be hurt if he found out. Should I tell him?