Yes, Hank never had a personality.
I would guess Marland never really intended for Hank to have a personality. He was there to try to encourage acceptance of homosexuality and nothing else was going to be allowed in that era. Hank having a lover who was dying of AIDS, and last being seen holding his hand was as far as they would be able to go.
In the 1991 or 1992 AIDS Ball, a letter is read from Hank, praising the late David Stewart for his AIDS research, and obliquely references how special David was compared to many other people who treated AIDS and people who had died of AIDS in the early years (ie, queer men) as bad and wrong. That was the most aggressive I can ever remember Marland's social issue plotting ever being...I can imagine all the friends or lovers he thought of in those moments.