He's an awkward nerd. When he got back from the Army he probably had to shop himself around a bit to find a wife.
Bob went from high school to college to the army to Korea and then back to college. He finally graduated at age 25. Schools were not coed back then, and Bob doesn't seem the type to have gone to a brothel, so it's likely he had very little contact with unmarried women throughout his first quarter century. That it only took him two years to get laid after graduation,
before marriage is actually something of an accomplishment. Those were the 1950's after all, before the pill and most other modern forms of birth control.
Bob today would probably be a loser virgin until middle age since girls feel no compulsion to settle down in modern times.
…until they hit 30-35 and see 3+ more decades of work ahead of them.
Based on Bob's life choices, he would probably end up as the schmuck who marries the blown out 35 year old roastie who is tired of working full time and is looking for a Good Man™ to support her and Chad's kids. Which is basically what he did with Barb, give or take a few years.
If they did, how did they find out two days before Chris's arrest?
EVERYBODY knew about the incest by the time Chris was arrested. #CHRISCHANDIDWHAT
He was hit with an Emergency Protective Order the first day, but then had two days left to his own devices before the police hauled him in. I believe he was on his way to Tom and Harriet's home, maybe even almost there, when they called him to say: "Fuck off." I don't know if Tom and Harriet learned the news from weens or saw it on Fox News, but they became aware of the incest the very first night.