All I can say any further on it,is in a clip of an Entertainment Tonight (that I saw a few years back) interview from
1983(promoting & shown recording Salute!);
Mary Hart states that before the show Gordon was advised by WB not to discuss his relationship with her.
I'm guessing that even though 2 years had gone by,it was still to soon since John Belushi's passing to comment.
So,I can only think they must've had some connection. I do know that Gordon has got to be too smart a man to get caught up in heroin use.
I'll never understand why others aren't that smart about it.
Having never done drugs myself,it boggles my mind!