I have unfortunately had it happen both ways. The first OP we had the little bast*rd and his wife over to the house for Thanksgiving dinner and it was during a time that I found out later was right in the middle of their affair. This last time (heavy emphasis on the "last") it was someone I didn't know and have only seen pictures of, once I discovered the affair. I can't say either one was better or worse, they both hit like a low blow taking the wind out of me.
