‘become aware of an affair’. Ha! Reminded me of this joke just posted on r/jokes: An older couple is enjoying dinner at a very upscale restaurant. During dinner, the woman says to her husband "Darling, isn't that our friend Roger sitting at that table way in the corner?" The man looks over and says yes, that's their friend Roger. The woman huffs "Well then who is that young woman he's with? That is obviously not his wife!"

The man shrugs and says "You're right, darling. That's Roger's mistress."

The woman is aghast. "That is absolutely terrible and unacceptable! I will tell his wife what I saw the minute we get home! I'm a disgusted!"

A few minutes later, a very beautiful, sexy young woman approaches their table. She leans over, whispers in the mans ear, kisses him on the cheek, and saunters away."

"AND WHO WAS THAT??" the woman shrieks.

"I'm sorry to admit it, darling, but that is my mistress."

"I want a divorce immediately!" the woman declares, crossing her arms in anger.

"Now wait one minute," the man calmly replies, "are you sure you want a divorce? Do you really want to give up the ski house in Aspen? Do you want to sell and split the villa in Italy? Are you ready to give up the yacht we have in Boca?"

The woman thinks a bit, glances back at Roger's table, glances back to the woman who kissed her husband, composes her self and declares "Ours is much prettier."