be in (one's) good graces
To be in one's favor; to have earned one's approval or regard. John's been in my good graces ever since he helped get me out of debt. I was definitely not in Mary's good graces for a while after I lost her cat.
be in someone's good (or bad) graces
be regarded by someone with favour (or disfavour).be in somebody’s good ˈgraces
(formal) have somebody’s approval and be liked by them: Having bought them all dinner, he is now firmly in their good graces.