tommyinnits best friend was tubbo. Tubbo isn't tommys best friend anymore.

Tommy's mom and dad. Kristen and philza asked him a question once he got home from school

Philza: where's your best friend tubbo I thought he was gonna come over after-school today?*

kristen: yeah he was really nice

"He's gone. Me and him aren't friends anymore. He's found a new friend.."

Wilbur and techno, Tommy's 2 older brothers heard and went up to Tommy's room

wilbur: so I heard tubbo replaced you with purpled