Kelly, years ago a beautiful black and white kitty showed up in my yard. He immediately started fighting with my little calico female and my black cat Magic. He was such a beautiful cat that I really wanted to keep him - but there was just no way it was going to happen.
One of my client's was looking for a kitty and I told them about this beautiful cat. They visited and couldn't believe their eyes when they saw him. They took him home and showered him with love and attention. He immediately took to the husband, but not to the wife. He was a man's cat - through and through!
When they would tell me stories, I could not believe this was the same cat - he had turned into a mush ball and he still is - and he is now 13 years old.
Bless you for even giving Oliver a chance....there is someone out there who will love having an only cat and I bet Oliver will turn into a mush ball too!