Well, if it was her apartment and legally under her name she reserves the right to evict him whenever she feels like it and if his stuff is on her property she has the right to move it off her property.
They were together for 2years. Even if her name was the only name on the lease, if he received his mail there for more than 6months it is his legal residence. The only way she could evict him is through legal eviction, which takes a minimum of 90 days. And if anything that is solely owned by him is damaged, or stolen, by anyone after his belongings are unlawfully removed from his home, the one who removed the items is legally responsible for replacing them. While I applaud her moxxy, and the creativity of her response, she should have thought it through MUCH more clearly than she did.