"What do you mean?"

I think he means exactly that:

"What do you mean?"

We would call it "zwickmuhle" or "dilemma".

I´ve noticed that you won´t get it the rude way.
I´ll try to explain, though my english is far from perfect...
It´s not intended as an offense - as I´ve said, I´ve realized that the rude style won´t change anything.

The reason why a lot of people are annoyed by your behaviour is, imo, your lack of irony.
This is not a bad thing, nor is it a reason to bash you.
But it leads to misunderstanding.

You got a simple hearted and honest manner and you should keep this - it´s a real treasure in our times.
Contemporary you should not take everything too seriously. Mostly we have to blame ourselves when other
people begin to bash, because mostly there is a reason for it.

So insteat of complaining "why everyone is so mean" in general we should ask
"why is everyone so mean to me?".

This gives you the advantage to change the situation by yourself.