Just met a beautiful Border Collie

Just come back from our last walk with the girls. Skye was enjoying her usual "Throw the ball Dad" with Patrick (hubby) and Reah was doing her own thing, when a lady approach us and asked "How do you cope with two border collies" she had a very grand looking boy Bc and a Heinz 57. The BC's name was Dylan but unfortunately wouldn't come near us to stroke. She told me that she got him from Canine Defence in Kenilworth 12 months ago as a pup, but he is only interested in the Bitch that she had with her (X bred) and that he isn't interested in anyone or anything except that bitch. Even when she threw the ball for the bitch Dylan wasn;t insterest he just ran after her and ran back....strange. But he was so GRAND looking. When she gave a command he didn't even look at her he watched the bitch all of the time and mimicked every single thing that she did, he was almost like the X bred's shadow. Very strange behaviour to watch honestly