It was my son's 16th last week. We are not well off but we do ok. I got him some things he had asked for along with a few surprises. I also took the evening off so we could go for dinner. This didn't end up happening he wanted to stay over at his mates house, of course I said go. I wanted him to do what made him happy on his birthday. I've just found out his mates parents threw a party for him. Cake, presents, all his friends stayed there. I am so hurt, it's really upset me. I haven't let my son know how I feel, I don't want to put it on him. Would you be OK with this?. I'm not sure what I want from this I just wanted to say it out loud, I'm hurt he's my son. It's not their place to throw him a party.