I love Kirsty and hope she'll stay in H&A for a good while, it hasn't been the same without her.
I actually love the lying etc it just shows that part of the old Kirsty is there, she has never lied for the sake of it, it is always her way of thinking she is doing the best thing at the time e.g lying to everyone about the escort thing, she was trying to help Kane and protect Miles at the same time.
I think H&A have done great in making her character 'grow up' I just really hope that her, Kane and Ollie stay for a very long time.