We split shifts and our relationship is stronger than ever! DH loves his job - he works as a driver for a car hire company and gets to drive some flash cars and get paid for it.
I think it depends how you look at life. If you feel cheated that this is how you have to do it to live, you'll probably end up w/a lot of resentment and bad feelings.
If you look at it, like: we're damn lucky we have the health and strength to do this, the world doesn't owe us a living, it's not forever, just till the kids go to school (we're also retraining for new careers), etc., it's something you just do and get on w/it.
DH and the girls have an incredible bond together - he was a SAHD for the first two years of DD1's life.
The time we have together, we don't spend getting worked up over the small stuff.
It's glass half full here.