When actors spend long hours together on set — often in the middle of nowhere — it's only natural for a connection to spark. Before fans of their TV shows know it, the costars are getting cute on the red carpet and flirty at events together. While every network has stars who have dated in real life, The CW seems to be a breeding ground for romance. And its big names aren't immune to the TV costar curse; out of 14 CW couples who found love off camera, three of them are still together, and just two have a lasting marriage. Keep reading to discover the relationships that started on a CW show!