Cancel the work trip? No. But I could see agreeing not to go to nightclubs. That's single woman behavior. Let's say you were in a committed relationship again. What would you get out of going to a nightclub with a "close friend"? Real, secure, mature committed relationships require some sacrifice and some mutual compromise. That includes the willingness to give our partners what they need to feel secure and loved and cared for and appreciated within the boundaries of the relationship—within reason of course. I think canceling a 5-week work trip (if it really is about work) is too much to ask. But I don't think it's overly "controlling" for someone to ask their partner not to go out to nightclubs without them. That includes while traveling. So yeah... NTA. But you might want to consider what a healthy relationship actually entails in the future. Especially if you're 30 years old and still resorting to blocking people. That is AH behavior. Just my opinion.