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 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 tells me, "i'm sorry. i never meant for this to happen." and i didn't know --