You're killing me

I was riding my new bike and my wife was following me. Generally she rides ahead and leaves me in her dust, but this was a new bike and she wanted to stay with me. A bike passed us that normally would never be close enough to see my wife and she said"You're killing me." This is the reason I'm riding so slowly. My rather large belly is killing her competitiveness and me health wise. Guess I need to ride some more miles for both of us.