House of Windows by Alexia Casale

Blurb on the back says: Nick is not a genius. He’s just going to Cambridge University because he ‘works hard’. But being a maths prodigy has not given Nick the formula for a successful social life, and his workaholic father is no help. He joins the college’s notorious rowing crew, but when that goes disastrously wrong, Nick is forced to find friends in some unlikely places…