Before the murder, the couple was in a very rocky place. Grooming a child into marriage can do that, because the child eventually grows up, wakes up and sees the reality. In this case Caroline was "not OK mentally", because the guy had kept her from going to her school, from speaking with friends, from recovering from her miscarriage she had when she was underage with his baby, from being herself in general. What did he do? Couple's therapy. With a person who had lied about her profession in the past, and who was already deemed unreliable to be accountable by the local masonic lodge, thus kicked out. You can guess where this is going, right? She saw her as the problem, not the literal narcissistic pedophile next to her, and even after the death and before he confessed, she was "given authorisation" by the killer himself to talk about the victim's psychological problems.

As a result, the victim was further discredited, even after death, he was able to play up the role of the doting father and husband, and even now, with his confession, there are still voices talking about how the victim was "erratic and pushed him to do it."

Even after her death, he was tearing her down. That's why, you don't do couple's counseling.