My Fiancé Gave His Mother My House Key—When I Came Home, They Were Already Claiming My Home as Theirs

“What do you mean, leave?” she asked.

“Exactly what I said, because this is my house,” I stated.

“I did not invite you, I did not authorize you to bring suitcases, I did not allow you to change my locks, and I am not going to let you stay here,” I finished.