Unless there is something in the transcript I'm not aware of, I don't think there was any violation of law. Also, the husband must show some type of harm for this to be worth a judge's time. There was no money lost or property destroyed. The only harm here is emotional distress to the husband, which honestly isn't worth that much. Given this relationship was mutual, the husband should be blaming his own wife rather than you. To put it more bluntly, if a person isn't usually sued for cheating with someone's spouse, its very, very unlikely that the husband can sue you because you asked and (I assume) saw his wife wearing a dress.
I suppose the husband could try asking for something other than money, like a protection order, but given women aren't treated like property anymore, this line of action makes no sense if the relationship was mutual.
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