I have to have a difficult conversation with my wife and tell her to stop giving expensive gifts to my son.
Why would asking her to stop giving expensive gifts to your son be so difficult?
She's trying to buy his love and he thinks she's trying to replace his mom. I want their relationship to develop without requiring her to buy him off with expensive gifts.
Your wife is trying to be friendly as his new step mother. He will grow to love and respect her over time. Giving him the gifts isn't a bad thing.
She's spoiling him too much and I want it to stop.
There isn't really any harm in giving the gifts. Why don't the three of you spend time bonding by doing activities together? I think you'll enjoy the time you all spend together.