I happened to be seated next to my husband’s ex on a flight. At first, it seemed like an awkward coincidence. We exchanged polite smiles, silently acknowledging the shared, invisible history between us. The flight was smooth until mid-air turbulence hit, not just in the sky but in our conversation. As idle chatter turned into deep revelations, the reality that unfolded was more than I had bargained for. In that moment, I realized something that would change everything about my marriage forever.