Why's he acting weird.?

Ever since Tommy was born he was treated differently or just ignored by the family. From an early age he learned to be independent and how to do things himself. It's been a decade and 5 years so what'll happen if his family decided to start being kind toward him?
{Everything is Tommy's pov or Third Person pov}

[Everything is completely improv and not planned so I'm sorry if something doesn't make sense to the plot or the previous chapter]

[Gonna TRY to update AT LEAST every week and put at least 350 words in each chapter]
Started: Feb 24, 23
Finished: ??? ??, ??