HA I'm so sorry this has happened to you. I too have a D16. My H has not taken her away with OW but he did introduce her to her behind my back. At time D16 was very cocky about it and said OW was nice and that I had to move on b/c dad had etc etc. Within a week she had changed her mind. Why? B/c ever since then my H refuses to see her without OW there and D16 just wants to spend quality time with her dad. She doesn't even want to see him with MIL or any other relative there. She feels so strongly about this that although H has been living in his own flat for 3 weeks she has not been to visit like my other children have. She is now telling H that unless he starts to treat me with the respect I deserve she wants nothing to do with him. So what I am trying to say is give it time. D16 is just curious, who would want to turn a holiday down? She will make her own decisions in the end. You should also know that my H and D16 were so close prior to him leaving that it caused probs in our M b/c he always put her needs over and above everyone else's (except his own)
Me 43 XH 45 M 2.7.88 Divorce 7.10.09 Kids D20,S17 & D15