There’s No Rules Against Flight Attendants Fraternizing With Passengers
As for flight attendants getting extra chummy with passengers, many airlines don’t really have policies on it. So if you find your flight attendant quite attractive, you can go ahead and shoot your shot. But chances are, that won’t fare well because flight attendants experience too much of that.
More often, flight attendants are the ones fighting off unwanted attention while they’re just trying to do their job. Still, they are allowed to meet a potential partner if they wish to do so!