I would also have to say that being away from home as much as you are at BA is also potentially catastrophic for married and family life.
That sounds a bit dramatic to me. I've been with BA for 3 years now on the Airbus and average about 3 to 6 nights away a month. I could do more if I wanted, I could do less if I wanted, but this works about right for me and much as I love being woken at 6am every morning by my "darling little cherubs" at home, having the odd lazy morning down route is a bonus (and probably gives the missus a bit of a break from me too!)
(Written from my hotel bed in Rome after a couple of late night Pernonis and a lie in. Just about to head down to the Piazza in front of the Pantheon that is outside the hotel door to sup a cappuccino in the morning sun before a lunch time pick up
)