That was interesting, I wander if it has something to do with the cliffhanger, if you know what I mean, which would also make some sense as to why he had such a reaction to his others BIL and what he wanted him to do, and essentially what the BIL wants to do with her.
There are so many questions, I'll focus on a few....why does the other lie about his wife? Trying to protect his wife? Or is he trying to protect Howard from trying to do something stupid once he found out? Seems like the other is fairly stone cold, is that his essence or as you suggested is he Stone cold because he cares ( He sticks up for Howard with BIL, holds Howard's wife's hand when he first sees her) or is he just being stone cold/manipulative?
Is it a coincidence that the coworker that got Howard's job that he wanted so bad was killed?