This may not come out exactly right, but I'm going to give it a go.
I think, in the limited scope of what I know, that neither mom or dad is doing a bang up job of raising this child. One of the main tenents of a custody order and choosing where the child will go in an initial determination or modification of custody is something along the lines of "the willingness of the parent to nurture the child's relationship with the other parent". Both of these parents, lost in their own venom and spite, have let Ireland down in this department.
I'm kind of ambivelent in who is right in this. Let me explain why. As someone who has been involved in the whole custody thing over the years, I'm not really suprised at this tape.
Your children reach an age where you expect all of the love you've showered upon them and all of the things you've done for them to mean something. You break your back to make their worlds a little better, and you think that it really means something. Then, as soon as they get back in the other home, you are bashed beyond belief. It's not suprising---children sometimes have to mentally survive by identifying with whom they're with at the time, and if one parent is peeved at a loving relationship between the child and the other parent, the nastiness is then passed onto the child.
But there's that age thing again. They're grown up enough for this and that, but when it comes to standing up to the offending parent, they just slump and give in. It's extremely frustrating.
There are conversations I've had with my kids--not custody related-- where I would probably be mortified to see a transcript of or hear a tape of. Teenagers and pre-teens can make you want to bang your head against a wall. Yes, dad went overboard here and let his anger get the best of him, but sadly, I know where's he's coming from.
Sometimes I feel like I've been made a fool of also.
For what it's worth,
FLMom