They were both very flawed and troubled people. At times, Holly could be very unsympathetic, yet I loved her and strangely wanted the best for her.
Regardless of the terrible treatment P&G gave Zas, I do think it's fitting Roger and Holly never got a happy ending. They were not that kind of couple, and someone once said they were the true definition of an anti-supercouple, and I love that. I loved watching the two of them move in and out of each other's obit at different times, but I always knew that whatever peace they found with one another was always going to be tentative, even if they loved one another deeply despite everything.
I could go on forever, but those of us who witnessed the greatness of these two characters are so lucky. I don't think GL/P&G ever quite expected that this duo would ever be as popular and vital to the show as they were.