DS is 5 yrs old. while very appreciative of the help grandparents gave us in first year such as having him for 3 working days a week due to nursery costs, i have long felt that father in law is overtly competitive with me for son's affections. today, son tells me apropos of nothing, that "grampy loves me best". further inquiry reveals that his grandfather has told him this a few times. i am fuming. this is so very petty on one level, and i should just let it go, but i am angry that he would dare to play mind games with my son.