Grandcourt did not doubt that Gwendolen, since she was a woman who could put two and two together, knew or suspected Lush to be the contriver of her interview with Lydia, and that this was the reason why her first request was for his banishment. 
Grandcourt did not doubt that Gwendolen, since she was a woman who could put two and two together, knew or suspected Lush to be the contriver of her interview with Lydia, and that this why she had requested his banishment. 