I suspect that Lureen knew Jack was cheating with SOMEBODY, judging from the way Jack described the marriage toward the end, and his repeated trips to Wy. but wether she knew it was with men???, + she could have been self-sufficent if she had to be, I'm not sure, But LaShawn did'nt appear to me to be as discreetly "polished" if I may say as Lureen. I don't see her being "quiet" about this. Her brazen manner would factor into this. Sure, she'd be shocked and hurt, but I've known a few LaShawns in my lifetime. That southern pride? Would'nt take it lying down. %(She'd eventually turn vindictive at being spurned this way. She could always move away from the gossip, but not before she extracted her revenge on Randall...and Jack . She'd give new meaning to "a woman scorned". They both seemed like "daddy's girls" to me ( we know Lureen was for sure), and Jack and Randall were playing with fire. my2 cents