Woftam about somes it up, and it worked for me as well.
A few guys however seem to feel that irregular hours/long haul flying is somehow different.
Well, yes it is...much more enjoyable than short haul, IMO.
A very few will find long haul very upsetting from a personal prespective, and complain to the company/fleet manager about how 'overworked' they are.
To this I say...
phooey... find another job.