I'm going to kick my ex-girlfriend out of my apartment.
Did she do something else to make you even more upset?
At this point, she's just a bitch, she's fat and she cheated on me and I've had enough of her.
If you really just can't stand to live with her after ending your relationship that's fine. It's your apartment so you have every right to do so. Just try not to talk about her like that because that was pretty rude.
What? It's only rude if you were a bitch to me first.
I think that you should give her some warning though that her time there is just about over. It is okay to kick her out, but you should at least make sure that she has somewhere to go first.