How to deal with degrading family members?

I have a question about how to deal with degrading family members. I try so very hard to please my family members. I will go out of the way to the point of totally being out of my character just to please my father and it seems like it gets me nowhere. Tonight for example, I made him a steak, and potato dinner. When I asked him if he wanted any rice pudding after he said "no, but I will let you lick the rest of the potato's off of my plate. I was very hurt, sad, and angry. It just seems like there is nothing I can do to please him. Can anyone recommend some ideas on how to deal with an issue like this? Thanks.