I try and give all the cats equal attention still - it's finally gotten to the point where all three will be on my bed at night with no growling or hissing. It took a few months. Hanna still tries to sneak up on Abby, but she won't get too close - it's kinda funny to watch her evasive manuvers. She will change her mind about attacking Abby at the last minute, often doing a mid-air flip to stay out of her way.