Help? One night stand

I went out with friends and coworkers last night and this one coworker was all over me the whole night. We were both pretty drunk but him more than me. I ended up sobering up a bit bc I didn’t wanna puke. He found me and was telling me how fine I was and started making out. He was stuck to my side the whole night and danced with me. We Ubered back to our cars after. In the Uber he was literally laying on my lap and started holding my hand and caressing it. We get to our cars and he hops in mine and we made out more and slept together. The sex literally lasted an hour. After he cuddled with me and we took a short nap before I had to go. We said goodbye and he told me I owe him some unfinished business since he never “finished” with me. But that was it. No text today or anything. I see him at work often so idk if that’s why? I don’t want to get too overworked about it but idk what to do really