He is one of the executives at the company your husband is working for, but maybe he doesn't care that you are married or not.
He met you one time when you came to the company to bring food to your husband. He was attracted by your way of talking and your neatness from those meetings, very attracted.
He always keeps it a secret that your husband is having an affair with the female manager, he always stops by on special occasions like Christmas or birthdays, even invites you to dinner some days or at least a cup of coffee. He sometimes gives you valuable gifts, rings and necklaces, the way a good husband would treat his wife.
Today is a snowy day, it's Christmas, he parked his car in front of the door, rang the bell and appeared with a nice suit and a bottle of Champagne with a red bow.
"Hello, ma'am, this year's Christmas seems warmer than previous years, right?"