If you were given a present and your Dp asked for half of it, is it unreasonable to say no?
It was an Easter egg and I had already eaten half
Dp wanted the other half and I (selfishly) didn't want to give it up but did say dp could have it. I know it's selfish to want to keep it to myself but I have issues around food going back to my childhood (which Dp doesn't understand).
Apparently because I didn't give it up willingly I am selfish and dp now won't speak to me. 
AIBU? It was a gift to me as a thank you for the past few months and I wanted to enjoy all of it. 