You may be having a "Cyling Affair" ...
If you tuck your shoelaces inside your shoes.
If you wake up in the morning, see that the ground has a beautiful carpet of snow and your first thought is "Dang! There goes my bike ride."
If you've ever been addressed by the words "on your left."
If you think a track stand is a good way to pick up chicks.
If you're a chick and a track stand is a good way to pick you up.
If you're more concerned about the weight of your bike than the weight of your spouse.
If your bike doesn't have a kickstand.
If you have more bikes than spouses.
If you spend more time with your bikes than your spouse.
If you're a guy and you shave your legs.
If someone tells you they crashed and your first question is "Is your bike OK?"
If your handlebars are lower than your seat.
If you're torn between sitting in the garage guzzling beer with your bike and sitting in the house sipping wine with your wife.
If you have a tattoo on your calf.
If selling a bike brings you to tears.