MSNBC Dateline December 6, 2021 06:24:00
>> kelsey may have been surprised but teresa's mom and sister, they knew better. because this wasn't scott's first dance with infidelity. oh, no, there had been others. in fact, scott and teresa divorced during one of his affairs, that was just after kelsey was born. and then three years later teresa took him back, remarried him. >> she wanted to have her family back together. that was her whole thing, family. >> what was it like for you when scott came into your house? what's happening here as he walked in the door? >> i tried to be sociable mutual with scott. but i always had that thought at...