Turning a Cat Bully into a Play Mate?

Gingy and Sylvie perpetually don't get along...this morning, for example, Sylvie saw Gingy walking into the kitchen so growled at her and scuttled under the table. Gingy paused and stared at Sylvie. Sylvie growled louder. Then Gingy tried to leap over the pile of books between herself and Sylvie and Sylvie screamed at her. Gingy backed off... So it goes, several times a day. (At other times, they can be in same room together without a sound passing between them.)

I was down in the basement trimming some rubber stamps (the old Stampin' Up! stamps aren't diecut so you have to trim the rubber and then mount the stamps on provided wood blocks). Gingy was walking around purring at me and running up and down the painter's ladder i leave up as a cat playground. Then Louie came bouncing down the stairs to see me. Gingy stalked over to Louie sideways...not a friendly body posture! He nonchalantly sniffed her butt and as she sashayed past him, he patted at her. Several times she charged at him, which would have brought a scream from Sylvie. Instead, he galloped up the stairs...and then stopped. And either paused to wash, or turned around and came galloping back down the stairs, making her give way. She tried ambushing him from behind a cat carrier and he went trotting away, then circled around behind her and patted her on the behind again.

It was as if he was taking all of her potentially aggressive actions and interpreting them all as play. He's not at all afraid of her, which she doesn't understand (she's used to Sylvie yelling and Fuzzy cowering)...i hope he'll persist and she'll finally learn that it's fun to chase and be chased.