You may find it shocking but many big airlines don't have an official policy against fraternizing between flight attendants and passengers. Unfortunately, it's more common for flight attendants to find themselves in situations where they are actively trying to avoid unwanted attention from creepy passengers. But every once in a while, sparks fly and there is no policy that prevents a flight attendant from meeting a potential partner, or maybe the love of their life.
Flight attendants may focus more on their professional duties instead of finding potential partners on a flight, but when love strikes, why pass up the opportunity?