Yeah, people in affairs are basically addicts. They act the same way. If you read about the pysiological things that happen to the brain when a person is in a A, it's very similiar to drug addiction. Huge dopamine releases etc.
Addicts will do some crazy stuff to get another hit of that dopamine.
When I first fell in love with WAW, we lived about an hour apart. One day she was sick at home and it was a blizzard outside. I drove in the blizzard for 2 hours to bring her some soup from a restaraunt she liked.
I brought her the soup and then hung out with her for 15 minutes and then had to get back home before the roads got too bad. 4 hour trip to see her for 15 minutes. Insane...