This isn't about the woman or her husband, more about Reddit and its users.
In this part she has a genuine concern about what her husband is up to.
In this part she finds out the girl is the daughter of the husband from when he was younger.
Clearly everyone has different advice to give depending upon what they know of the situation.
I only bring this up to illustrate the madness of crowds/groupthink/peer pressure and how it influences acceptable choices at any given moment via upvotes and comments.
This is applied to modern journalism regularly to get clicks and increase advertising revenue, which in turn can be funnelled via corporate and political motivations.
Easy example of something more sinister.
Pretty much every sitcom I watched growing up had that problem. It's the reason why I make sure my wife tells me, or understands I am not psychic.
My favorite time was in Home Improvement when Jill is starting to work on her Masters thesis, and take a lot more control of her life. She gets angry at people, and has to learn to calm down. At one point she realizes she is angry because she never actually told Tim about her plans, and he asked for forgiveness because that's how it usually happened. It took a few episodes, but she started to apologize and view her husband in a new light afterwards. The show that was basically the creator of "Men are Dumb" the Comedy, also had the answer to it.