relationship with parents and with spouse is completely different. no wife would want to listen that she is second and his family is first. If the guy can not balance it’s a fault at his side not wife’s and if the guy is idiot enough to divorce wife on such things then good for her that she didn’t end up spending her life with such a looser.
something are easier said than done.
it’s good if in-laws learn some manners too.
and you forgot to blame her for taking care of herself and her daughter financially ? please criticise her for that too.