Legal Question in Family Law in Texas

I'm not completely sure what the question is, but I'm assuming it relates to who will get custody. Since she's 15, the odds are fairly good that if her parents can't work it out, the judge will let her live where she wants to, as long as there's not reason to believe that her dad couldn't do a good job taking care of her. If he works offshore for weeks at a time, has a drinking problem, has ever been abusive to any family member, or anything else like that, there could be a problem, but otherwise there's kind of an assumption that a teenager probably knows what will work and what won't, so usually the judge will honor that.