You're not being weak by picking yourself up by the bootstraps and saying to yourself, You know what? she's leaving me tomorrow. I'm not sleeping in the same bed with her like a weak puppy dog taking any scraps I can get.
Go dark. Remove contact. When she tries to persuade you subtley to stay ("you must do what you feel is right, but I don't think you should have to leave your own bed"), then she is pursuing you. That is the direction you need this to go in.
That happens by you backing off contact, as well as questions about her life.
