She loves contemporary, 'real life' type stuff, but REALLY doesn't like books that are overly obsessed with boys/make up/breasts/sex/etc. She's just not interested in that stuff yet.
She wants stuff that feels modern, real, but not the usual teenage-angst. She doesn't like fantasy in any way, and is not keen on too gritty, as in Jaqueline Wilson books for older kids/young adults.
So something that reflects teen life, but the whole of it, not just sex and boys; that isn't too gritty or edgy, and feels uplifting but serious. Maybe a bit of dark humour.
I don't think that's too hard a remit 