I think all of that just shows that, despite her occasional bouts of her thinking that she'll be stuck in the house for her whole life and never get married, ect, She wouldn't want to be anywhere else when it all comes down to it. I'm sure that she would get homesick if she left and tried to get away from her life at Fosters.
She's just so dedicated to others and that's what makes her so endearing and likable as a character. And I am very glad to see her have more and more big roles in the show.
