That's actually pretty rare. My bet is something far more garden variety. And I'll bet the hubby was wearing blinders. I feel for her kids. Sigh.
"If a person has a split personality their partner..."
...may be themself!!!
I'll bet she was on some kind of medication for the past twelve months...which her old husband probably had all the suffering he could take in the marriage and she probably had all kinds of dreams for this other astronaut buddy of hers. She is finished with the agency...and to likely get a 20-year pension deal with the Navy. I'll bet she ends up with NBC as some kinda analyst in the end.