“This may be difficult to hear but there are other opinions besides yours that we abide by. I appreciate your confidence, however I cannot rely on you for direction.”
According to Halacha, Motzi Shem Ra refers to saying something about someone that is: 1. not true (or not known to be true) and 2. negative.
The statement that this guy does not date to get married is 1. not true (since we do not know it to be so) and 2. negative.
It is assur to say Motzi Shem Ra even for Toeles.
You (the moderators) seem to be very confident that the statement was not Motzi Shem Ra. I am very interested in hearing why you think so. I would respectfully like to ask that you share your reasoning. Thank you very much in advance.