My friend stayed in my house for six years for free and didn't spend a penny. How can I get her home?

Straight to the point! Things have come to this! Then rip your face off! Just tell her to fuck off, you are not his parents, and you have no obligation to support him! There is no need to maintain the so-called friendship at this time! Because it no longer exists, you are equivalent to picking up a tramp and keeping it at home! Why bother? If you don't leave, throw things out and change her locks! Come on, call the police directly! Accuse him of breaking and entering! You just don't have enough heart!