Yes, it's tough when you have cats who don't get along. My RB Peeka hated my sweet Pidge, probably because Pidge and Boo have always been heartthrobs from day one and Peeka, being Boo's sister, was jealous of their companionship. Poor Pidge practically lived under my bed for years because Peeka would attack her every time she showed her face. She'd even stalk her and wait for her to come out of the litterbox. Poor Pidge was so stressed all the time. It wasn't fair to her but I kept thinking that they'd eventually get along and you know when that finally happened? When Creamsicle came to the family. For some reason, she had a calming effect on Peeka and she never picked on Pidge again but Pidge still was very cautious when walking through the house even after Peeka died. So I can fully understand why you wouldn't want that kind of situation in your house, Cindy. You're doing a wonderful thing by fostering G and maybe things will settle down and you'll decide to keep him but, if not, it's understandable why you'd want to find him another home.