david philandering, messing around, infidelity? >> not till i heard. a friend of mine called me on the, on my cell phone and asked me, he said, "did you hear about david havin' an affair with becky?" and i said, "there's no way. there's no way." >> reporter: the news about the affair didn't surface until after kay had been buried. david was still seen then as the grieving husband. >> if i woulda known about that affair, i don't think there woulda been as much support for david at the funeral or at the hospital. >> why would you cheat on someone that loved you so much and was always there for you, to be with someone -- or to just -- just to have sex basically? why?" it -- it wasn't worth it. >> reporter: tamara thought back to david's behavior in those days after kay's death, including an odd exchange between them at the memorial service. >> david went up to me. and again, being very close with kay, he hugs me. and he hugs me really, really tight. and he's boohoo cryin' and he