About a year and a half ago I started feeding and taking care of a cat that was left behind when a neighbor moved.It’s definitely an outside feral cat. I feed and water her, give her treats and even built a nice insulated cat box. I even put a heating pad in it so she wouldn’t get cold! Still she pretty much ignores me. Only on rare occasions will she let me pet her. Is it bc she’s feral, or are some cats just that way?