When I was dating my husband he had to return to the UK every 90 days to renew his Visa. I dreaded it every time. He still goes back to the UK quite often because his kids live there - sometimes I go along, sometimes not. He also travels on business a few times a year.
In the beginning I dreaded his every absence.
Now I'm just the opposite. I'm not saying I "like" my husband being away - the difference is "me". I've learned to cope with it better. Instead of constantly thinking about him and what he's doing - I concentrate on keeping myself busy. We both enjoy the "vacations" from each other, but not as much as the "homecoming".