Need help finding this book

The female lead is a loner at her school and these boys enroll and befriend her. They're in search of their tether\center\bond\mate and they've narrowed it down to two girls. Her and another girl. *Update: they were born on the same day at the same hospital I don't think she's know she's anything other than human.

The boys are sweet and nice to her but their lead insists the other girl is who they've been searching for. So they kinda ditch our girl for a bit but not without conflict within their group. I think she even encourages them to hang out with the other girl.

I don't remember anything else unfortunately. (It's not Obsidian Cove by Jarica James)

Thank you!!

UPDATE: Found!!! Thank you kgrant2009
It's Their Shifter Princess by May Dawson