To think the person who always says "I've done nothing wrong" actually has?

[RainforestFrog]

If you genuinely unknowingly upset someone or hurt someones feelings surely your immediate reaction would be to ask whats wrong and apologise? Instead of immediately declaring "I've done nothing wrong" and make out the upset person is bullying you? This is a common running theme btw, not just a one off.

Hopefully you get what I mean, I don't know if this description is too vague.

That’s often true, but it can be a clash of cultures/styles with one person valuing frankness more than the other. It could also be that you haven’t done anything wrong. Eg. Person A criticises person B for waking her up when Person A is up making person B’s breakfast.
I think it’s often true that a person’s self- perception is way off. The person who says I always apologise if I’m in the wrong often doesn’t. The person who says I hate asking for help has often worn out the good will of all around her.
Does that help?

Sorry, person B is making breakfast and Person A is criticising them so Person B is right to say I have done nothing wrong.
Yes, I think you need to be more specific.

Yanbu. See also people who call themselves 'a nice person'

They usually aren't

Oh the classic was the bloke who said ‘ I get on with anyone, me’
so I said ‘How come you’ve got no teeth?’

It depends on the situation..

Some people are too sensitive and take any disagreements offensive, other times the offender has bullying tendencies without any awareness.