Context: I thought I saw an ice cream cake in the fridge.  It turned out to be some kind of pineapple cake.  I still ate it but it was a little dissapointing.
Speaker 1: I went to the fride and was surprised to find what I thought was an ice cream cake.
Speaker 2: Oh! Was the ice cream cake for you?
Speaker 1: It turned out to not even be an ice cream cake.  It was some kind of pinapple cake.  I still had a piece but it was disappointing.
Speaker 2: Awww that is kind of disappointing. Ice cream cake sounds tastier than pineapple cake.