Do you think they were having sex before the baby was born? I couldn't really tell. Do you think he kept sleeping together after his wife found out? I think he still was but maybe I am little off but I do think he actually loved her.
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Can't remember exactly when the affair started, but I think he stopped the affair and moved his family away after Emma's tragedy, and her killing of Frankie's doggie, which was when everything came out...and yes, he did love her and Frankie, too, IMO!