Am I being ridiculous?

My boyfriend is putting stickers next to the things he accomplished today on his hang up calendar. I asked him if I could put one on where he had “pick up medicine” since I drove him to get his medicine and he wouldn’t let me. He said it’s his calendar so it’s going to bug him if I put it on. I know this sounds childish but I think it’s ridiculous he wouldn’t let me put a sticker on something. Am I being ridiculous?

Vote below to see results!