help me understand feelings

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so far I've got:
>happiness
what heppens when good things happen to you or someone you like or bad things happen to someone you don't like
>good thing
when you want something and it happens, like you are hungry and you get food
>bad thing
when you want something and it doesn't happen, like you want to stop feeling a needle but you continue to feel it (even after it's not stinging you)
>sadness
when bad things happen to you or someone you like but you can't do anything about it
>anger
when bad things happen to you or someone you like and it's the fault of someone
>who to like
people to make you happy
>who to dislike
people that make you angry

Anyone can explain me some more?
Many people have tried to explain me love but that seems like a difficult one.