She's been through a lot and I think that's made her a little arrogant. She should take some of her own advice and realise that everyone has their sad stories, not just her. Everyone's been through tough times, everyone's strong in their own way.
I don't really disagree with what she said to Gemma, though it was a bit harsh - but she's a bit of a hypocrite, as she herself is the one who acts the most entitled due to an underlying feeling of victimisation.
That's what I think, anyway. Props to her for being a headstrong woman, though.