Believe me: boisterous toddlers will be too rough with your cat sometimes! But she would put up with it and get him back by ambushing him from some hidden vantage point as past, leaving him in fits of giggles as he looked round to find his agile assailant had already disappeared again.
When Zack had fallen asleep at night she would curl up with him on his bed. More than once we found the pair asleep lying side by side, Zack with his arm around her.