My advice? Don't ask him where he was. Don't discuss it. Make plans NOW for the kids tonight so that you can GO OUT - do NOT be home tonight - come home VERY LATE. If he DOES come home or call he'll be wondering where you are and with whom. This will be the complete opposite of what he'll be expecting (tears, drama, recriminations). If he is home before you leave, get dressed to the nines and don't tell him where you are going. You are going "out". Period.
