The idea of sending videos to Felix would seem to me with a Zack who has not fallen in love with Sophie as he did but with Zack where he dominates Sophie and has her as a toy couple, let's say. Where he took Sophie out as a trophy that he should show her and not as a man in love as he ended up being. But also without seeing Felix's reactions I don't see the reason, it would just be harm, but the idea seems too forced to me.