The girl you're talking about is red head, right? Yeah she doesn't really deserve any sympathy.
But I can understand that she's essentially enslaved by the bar boss. From what I understand, in the first place she was sent on a mission to get Yuna to basically join the bar boss's Lesbian harem by any means neccessary which lead to this whole blackmail mess. So I can sort of understand that in a way she's a victim too but it was her own stupidity that got her in this mess.