To be succinct and private… My incubator worked me for weeks to build rapport and trust with me in my younger days, to get me to tell her a something that she would ultimately, and immediately use and weaponize against me and others.
This wasnt the first time I tried to have a relationship with her, but it did finally open my eyes and become the last. In the many many decades since, I’ve not so much as acknowledge her existence when crossing paths.
could be she saw your wife as a threat to her controlling nature, or your wife saw through her bs, and the mom is projecting. i had a former co-worker that had an extremely controlling mother, due to having trauma with thier first child(an accident) so she kept the former coworker close to her, to the point of “suffocation”.