Before I forget, I'll jump on the don't blame BBJ bandwagon, too!
It almost sounds like he didn't (doesn't?) want to grow up, to me. Going out drinking after work..... well, once you've got kids, and you are trying to work a second business (farming to boot!) it doesn't seem very likely, to me! Looking for an OW because your W is actually taking care of the kids, when maybe, just maybe, you could actually HELP her take care of the kids? Having an affair when your kid is a month old? If I remember right, I was as tired as W was at that point, who could have the energy to have an A? I'm just saying, the list of "complaints" are more about his flaws than yours, in my opinion!