This is overly strong. X2 is likely similar to X and Me2 is similar to Me. X2 is certainly more likely to get along well with Me2 than a random, but far from guaranteed (which proves your point, but I wanted to rein in the pessimism)
My brother last year went to the doctor with an ear ache. The doctor prescribed him some liquids and pills. Only after he left he realised the doctor never even looked into his ear!