she's confindent without knowing how beautiful she is, if you know what I mean.

File a motion called an "order to show cause" in the court where your divorce decree was adjudicated (filed and made final). They will set a hearing ordering your ex to appear and if your ex can't prove that your allegations are false she could be held in contempt of court for violating the court's order in the divorce decree. The court will probably just give her a firm warning the first time, order some make up visits with you, but if it happens anymore she could go to jail (if what you've reported in this forum is accurate and there aren't other reasons keeping you from having visitation).

good luck