"She" IS fixed......thanks for the advice tho
You’re a little testy here. Calm down and do the below to eliminate the problem.
You have been given two very good solutions for you cat problem.
A_perfect_lady suggested you place a cover in front of the glass so they can’t see one another.
Bigg Red suggested you place moth balls on the deck.
Both of those used together should fix your problem with cats, however it won’t do anything to repair your cognitive skills.