I think there is something really creepy about their relationship.
As far as I understand it, she is his employee - but I always get the impression she's constantly torn between acting like his surrogate mother and wanting to rip his clothes off.
(Gloria sounds absolutely lovely btw - she must deserve some sort of medal for putting up with PA's nonsense).
I've always thought she had an unusual relationship with him.. I know hey are friends but she always gives me the impression she wants to be more than his manager to him