Hello, as much as I hate it my girlfriend of 2 years of whom I live with is threatening to leave me… again.

Last time we went through this she wound up taking a lot of stuff with her when she left that I felt didn’t rightfully belong to her or that she didn’t need. (things such as dishware, my electronics given as gifts, gifts given to both of us mutually, etc)

If this were to happen again how should I handle the break-up?
Do I toss her out, lock the door, and tell her “see you in court”?
(I can see issues with this route per what I say next.)

Also, both of our names are on the lease agreement for the apartment but I have always made the full payments every single time by myself from my own bank account.