This entire time, there is typically focus on one individual—the person that the OCD sufferer believes she cheated with. This is typically someone who, when sober, this individual has found attractive. So there is already a sense of guilt around that person. And now, after the night of drinking, the OCD sufferer can start to read deeply into every interaction with the person she thinks she cheated with, looking for hints that something happened there.

He shrugged his shoulders to the inaccurate assumptions. I, on the other hand, had a different response.