There are so many different examples of couples doing it wrong and so many of them doing it right. Have to find what works for you. Even outside of aviation it is very hard for both members of a marriage to find great jobs in the same town where one isn't sacrificing for the other.
I'll only add what two grey haired US Air pilots told me when I was a new turboprop FO jump seating. Don't wait on this career to live your life. Don't say "I'll get married/have kids/buy a home/whatever when I get a raise/upgrade/work for a major". Too many times it will take longer than you think and you will have spent your life putting work before everything else that's really important.
An oldie but a goodie to reiterate the point:
The story of the Professor and the Jar | Juvenate