my step mom Brother is gay

Hi today me and my dad move in to his girlfriend house The divorce was over and mom win the house But she kick me out too Because I love him moreWe walk and I meet my step mom and step brother and Step uncle When I hold is hand to shake it He said careful young man I'm gay I was like whatI mean why did he tell I didn't askWe talk and my dad show me my new room it was nice I unpack but. My gay uncle is next doorThis is my first day in the house Don't want say anythingBut do you tell people out of the blue your gay yes or noAnd do I have to get to know him too or only my step mom and step brother