Oh damn, this is...this is autobiographical huh?
I thought it would be a little sillier but honestly this situation makes total sense. She leaves her career and her solo life and dives right into a marriage in a new city, with no job, no friends, no support web at all outside of her husband.
Doing that alone is hard, but there's no pressure to succeed. When you're with someone who cares about you and they see you floundering, it sucks to be witnessed in that state and it adds to your mental load.
It's a lot of change for the sake of one person, and it's not a change you're making together. This makes so much sense and is so easy to accidentally fall into.