Many people joke about having a “work husband” or a “work wife” they spend a lot of time with at the office. But what happens when that relationship starts to feel flirtatious—and not in a harmless, joking way, but in a serious way? If you suspect it’s happening but aren’t sure, look for these signs that your married coworker is flirting with you. Once you know it’s happening, there are a few ways you can put a stop to it.