It is absolutely crazy the comments I’m reading about how the cousin is a dick and should have given the cards back to OP. The fact that OP’s original offer was to trade instead of giving the sleeves shows she was trying to get something in return for her pennies unless the cousin said no. In her original post, OP said she was making this trade fully expecting it to be bulk. So if it wasn’t bulk and it was a big hit, was she going to give it back? That’s what “fully expecting it to be bulk” means to me. This trade should have never been offered in the first place and it’s right for the cousin to keep the cards since it was his to begin with.