What would you do?

The scenario: your close friend matches and is talking to a person you also talked with. Sexted. Exchanged calls and videos. Never meet in person because they always flaked. You're positive it's them. The sexting partner knew you are married and discreet. Close friend obviously has no idea you step out. Do you:

A: reach out to the person you sexted and let them know that it's your close personal friend and you didn't want them surprised when the friend shares social media etc.

Or

B: ignore it. cross your fingers it fizzles because they were such a flake to you. That maybe you won't have to be introduced at any point.

Additional context: the close friend has been talking with sexting partner for only a week if that sways your decision.