Lyn, you give some really good advice. So here's one for you. I have a 9 year old very small female princess (tuxedo cat). I got her when my sister died for comfort and I spoiled the crap out of her, I also had a large male cat who was 7 at the time she came along and we just put him down at 16 because of medical issues, anyway, they got along fine, but she was starting to bother him because he was old and she wasn't.
With the older cat gone, my female is lonely, I think, because she is sleeping in his spots where his smell is. Will she get over it or do I need to run out and get another cat for her and will she accept another cat at this point. Is it ok to be a one cat household or do they really want company?