I think he was having an affair & they were having financial issues.
I think he got a sitter while SW was in AZ & was seen out with AP.
I think someone saw something & told SW. She knew bad times were ahead, that’s why she told NU she was really going to need a friend as they headed home.
I think she confronted CW about what she’d been told. I think he took it as his chance to admit he wanted out.
I think she told him no. (I’m not blaming her. She was newly pregnant with 2 young children and was working hard to improve their financial situation. She probably wanted time to try to make things better).
I think he seemingly retreated, as he always did, and they went to bed as both were tired & had things to do the next day.
I think he laid there & all of his anger & resentment that had built up erupted in complete madness. He killed her to exert his power, his will.
I can’t explain the babies.
MOO