<human>: I had a threesome with my coworker and a close friend of mine [F21] about two years in to my relationship with my boyfriend and kept it a secret. After that, my coworker and I kept drunkenly hooking up sporadically over the past year. Most of those hook ups would be after a night of drinking with our other coworkers and he'd bring me back to his house and we'd have sex. I broke it off for a couple of months and then we started up again. All the while, I never said anything to my boyfriend. 

Eventually, we started having a semblance of feelings for each other, he more than me (ie he would ask me out to dinner or ask me when he could properly take me out and I would leave as soon as I could or just kind of dodge the question) and so I stopped it once and for all - hooray!

I still want to be friends/on talking terms with my coworker and be able to talk to them (I like them as a person and I still work with them) but he's not talking to me. Also my boyfriend is none the wiser.

What do I do?

Can you succinctly summarize the text in 1-3 sentences?
<bot>: I had some drunken hookups with a coworker over the past year until it got weird. I never told my boyfriend. What do I do?