dr. flasterstein's office.'s care 3 hours away to kansas city. >> why did your mom do this? >> i think that she was constantly seeking attention for herself because she didn't feel loved so let's make this baby girl sick so it forever needs you. and that's what i think is from. >> you know a lot of people see this and just wonder why. why didn't you say anything. >> i know. i beat myself up about that all the time, but i have to understand my mind frame back then. i was always so afraid of her. afraid of the consequences after. next, gypsy in court, where the consequence could be life behind bars. >> the knife used in the homicide was found in nicholas' home. >> and what about that boyfriend? what's he got to say for himself and to gypsy tonight? his first interview ever when 20/20 returns. >> reporter: this is their only selfie together. gypsy blanchard dressed as cinderella. nick godejohn her prince charming. but their happily ever after, may never come true. the once loving couple now at odds and facing the