Not only do pilots hook up with the attendants but also passengers they meet on the flights, random women at bars hotels etc. Same goes for flight attendants, quite a lot of whom have multiple guys they see in different places.

Do pilots get with flight attendants?

While there are many pilot and flight attendant couples, and many flight attendants married or committed to other flight attendants, and many pilots with the same connections with other pilots, several factors have made those connections less likely.