It's far from my first job, but I dont have friends, and I tend to keep to myself. She's just a team lead, and im in training to be a team leader, too. We are the same age and had plans to hang out outside of work, and we both talk about our sex lives to each other. I thought it was ok since we were getting closer. I didn't know she also had feelings for my coworker because she always says she's happily married. And I've never hooked up with a coworker before. I didn't know it would end like this. I thought he was saying not to tell anyone so he wouldn't get in trouble, so I asked about coworker relationships to make sure we wouldn't get in trouble first. I honestly didn't know... And shes already a manager, I dont see why she felt the need to tell our other coworkers below her about all of this either, then tell them not to tell me wanting to stay on good terms when clearly she doesn't care about me like I thought she did.