Prepositions

I have too many emotions I have to deal with.
I need to categorize them. I need to.

I am angry at you.

I am not angry to you.

I am not angry by you, but at you.

Anger, linguistically is aggressive. Accusatory. Linguistically one-sided.

You are alone in your anger.

Can I be sad at you?

Can I aggressively be sad?

But why can’t I? Why can’t I be sad at you, since sadness seems so passively encompassing.