Remember, though, that she wasn't the ow H left for.
IMHO it makes no difference. He is still legally M to you so he shouldn't be seeing anyone let alone allowing them to pick up his children. What would you (and he) have done if OW had had an accident after picking them up? Sorry but to me this will always be a no no.
Me 43 XH 45 M 2.7.88 Divorce 7.10.09 Kids D20,S17 & D15
