When you live being looked down upon and seen as dirty and finally have someone show kindness to you....first thing she thinks of is that person is just looking down upon them.
Infuriating mindset but sadly one that's easy to understand. How-ev-er. It does not excuse her attitude towards Carol, since Carol had no way of telling what her origins were. Therefore I can only see it as little more than a childish pouting and rudeness.
I would say she doesn't deserve Carol's help, but the orphanage director and children in her care doesn't deserve to pay for her foolishness. *sigh* Is it too much to ask for a quick slap though? A little chop to the ribs?
Oh and old man totally culprit, and has done something to the other guys.