I think it is between her parents and herself

Sparks...this is none of your business

your business is working on you


spend less time analyzing her moves, her thoughts, what you think she might or could do and worry more about what you need to do

you can not fix her
she is not broken

it is honestly none of your business or concern what happens between herself and her parents...
do NOT call them
do NOT try to make them feel more assured of custody should a divorce happen


enjoy your time with your son