"Prison" joke

A woman woke in the middle of the night to find her husband missing from their bed. In the stillness of the house, she could hear a muffled sound downstairs. She went downstairs and looked around, still not finding her husband.

Listening again, she could definitely hear moaning. She went down to the basement where she finally found her husband crouched in the corner facing the wall, sobbing.

“What’s wrong with you? ” she asked him.

“Remember when your father caught us having sex when you were sixteen? ” he replied.

“And remember he said I had two choices: I could either marry you, or spend the next twenty years in prison. ”

Baffled, she said, “Yes, I remember, so what? ”

The husband sobbed, “I would have gotten out today. ”