Despite being a teenager, Alex is very childlike and innocent in nature, having various learning difficulties. As a result, he doesn't speak a word at all to anyone, and tends to hide being his twin in new situations, and is very rarely seen away from them at all. It's rare, however, that he isn't happy and wanting to play, cuddle or have fun, and is often seen clinging to an old, worn little cat plush toy that seems to accompany him almost everywhere, and something that he cannot sleep without at all.
He loves things which are soft to the touch, such as blankets, soft toys and hoodies. It's known that he'll never be independent in any way, needing help and support with a lot of day to day tasks, such as brushing his hair and teeth, getting his clothes sorted for the day, and so on. His favorite things in the world are the color purple, his plush, being told stories, cuddles and playing outside in the yard, though not necessarily in that order. (His absolute favorite person in the world is his sibling.)
He's terrified of the dark, and storms, and when he gets seriously upset, he can cry and whimper for hours, though he never gets angry or violent, thankfully.
Despite all his problems, once he's warmed up to someone, he can be very happy, affectionate and loving, with a great big smile for those who are nice to him and look after him.
His best, and only friend, is <Character A>, his twin sibling. They were born, as someone once put it, "more normal" then Alexander was. The siblings are still very close, mainly as they do act as a carer towards Alexander and is pretty much the only person Alex talks with.
<Character B> moves in, and hits it off with <Character A> straight away, and gets on with Alex well too. Everything seems fine, until <A> starts spending a hell of a lot more time with <B> and somewhat neglecting Alex unless it's time to look after him.
What will happen?