My bestfriends brother

So who hasnt read a story about the bestfriend who falls for her bffs older broter? Its cliche i know but this one will have a secret twist.... I really really really suck at this but here it is.
Faye and beth have been bestfriends since they where little, alexander was adopted by beths family when he was young but has been t boarding school for the past ive years wih was his own idea. No body knows why not even his parents. What happens when sparks fly between him and his baby sisters bestfriend? Will faye except his secrets and still want him? Even if his past is twisted? At firt it manly focuses on these charecters but im going to encorperate other people and there struggles so that its more rounded. Amd it will be from many diffrent povs.