christina's parents divorc when she was a baby. she grewhe up in suburban dalla with her dad, mark. her stepmom anna. and a brother and sister. but she remained close to her mom, johnny mcelroy. >> she's the love of my life, the apple of my eye, my heartbeat. she's my everything. >> reporter: it was almost like christina had two moms, and later when jonni married ronnie, two dads. and lots of friends.s. sydney robertson has known christina since they were 3 years old. >> her personality was definitely ten times bigger than she was.e and she'd get so small but she gives the biggest hugs. and she will not let you go. >> reporter: kelly lange met christina just after high school.ep >> she was this animated, smart, beautiful fashionista. she was quirky, and it drew people in no matter who you were. >> reporter: and all her life, christina was drawn to two boys. >> she knew these two guys, logan and hunter, since third grade. >> reporter: hunter foster, logan prendergast and christina. >> the three musketeers. you know, and they knew everything about her. >> reporter: logan and christina went from buddies to high school sweethearts