I don't know about you, but whenever I hear that a TV couple dated in real life, it changes the entire watching experience for me. The kisses aren't just 'on-screen' kisses. Their fights feel more real. Don't even get me started on the cheating scandals. Suddenly their TV relationship carries ten times more weight, and they will be ruthlessly shipped both on and off-screen until the viewers see wedding bells.
This is our relationship too now, sorry to be the one to break it to you.