nancy called the detectives, who called dave, who swore -- no way he was engaged to cari. he said he hadn't even seen her, but still heard from her constantly, a hail of texts, and emails that was only getting thicker. >> i would get 50, 60 a day. >> reporter: a day. >> oh yeah. yeah. all day long. it at one point rendered my phone completely useless. it would just be dinging so much i couldn't answer a phone, or send a text. >> reporter: make you want to change your phone number, wouldn't it? >> did that a couple of times. >> reporter: you did, and they still -- >> and -- >> reporter: kept coming. >> they did. >> reporter: occasionally cari's texts seemed almost normal. i know i ruined it. i tell myself don't be crazy, this guy was nice to you, but something takes over, but mostly the emails and messages were angry rants about perceived romantic rivals, liz golyar in particular.