Trusting my friend, When is this love-filled festive event to a woman whom he calls names behind her back supposed to be happening? Sounds as if you need to be prepared.
Also, what makes you think that your youngest daughter is being used to relay the info? Maybe she is just telling you about stuff in her life?
Otherwise...maybe it is easier for him and OW to complain about you than it is to deal with each other. In a way, that's not surprising as affairs seem to start with one S complaining about the other to a third party.
Keep your distance x2!
M: 16 years Bomb 4/07 OW 20s long gone Divorced 11/09 I remarried New Guy Cooperative r w/X regarding D