OP here! I felt like I should probably clear a few things up. He's been my best friend since we met first semester of college, and we tell each other everything. Our relationship has ALWAYS been brother/sister, but we went to a late showing of Suicide Squad over the weekend and he slept at my house since it was almost one in the morning when the movie ended. And we both cuddle with the person in bed with us, and I realized I must have been catching feelings for a while because I really wanted more than that. He's interested in someone else (again, we tell each other everything), so I know nothing's going to come of that. As for my coworker, someone said to let him know what he's doing is harassment, but he and I joke with each other all the time. We work at a place where if we all don't joke around and make fun of each other, we'd go crazy trying to stay sane. He is an ass, but he'll stop eventually. It's just that it stings a bit now because he wasted no time when in the past he's waited until I'm out of my bad mood about the situation. Thanks for the support and jokes, guys. It made me feel a bit better (: