There’s been a lot said on the difference between feelings and love, or more precisely, what you feel and what you will. All of that applies to repentance, too. Repentance is not just feeling guilty and bad, not even feeling terribly bad. It is a turning away from sin and back to God. It isn’t just feelings, but about what you do. Or perhaps better, it’s about your orientation and your trajectory. Repentance requires a resolve to turn away and carry through. If you are truly changing your trajectory, it means you will do what you can with the time you have to repent and turn away from this adulterous affair and go to confession. Until you make that shift, you aren’t serious about repenting.
To others, I’m going to give him the benefit of the doubt and not accuse him of trolling. He may be at a point wracked by guilt. He may already know the answer. He may be at that point where he needs to be told what he already knows, and is seeking that. This is possibly, in a sense, a type of confession (though not sacramental and absolving), a cry for help. He may be at a point of turning, and just needs that push. OP, I obviously don’t know if any of that’s true, but it’s why I will take for granted you’re not trolling.