My dad hasn't been talking to us (by choice)

24M, still living with my parents and older brother. Yesterday, I partly overheard my dad arguing with my mom. He just stopped talking ever since. Even though my mom and dad slept in their room last night, he's still giving all of us the silent treatment. Everyone has just brushed it off.

Unless things go back to normal soon, I don't see myself living. There hasn't been anything to live for anyway, and this situation just makes life go from indifferent to uninhabitable