JMS prioritised the family life with the Parkers because he knew he had a limited amount of time in which he could write the marriage. He knew when he signed on they were getting rid of it, he wanted all the time in the run to make it seem important to the lore and to the readership.
I love how you're able to read JMS's mind and know exactly what he knew at the time and what he was thinking when he wrote stuff.

Oh wait...