What if I told you that I tricked my girlfriend into eating with the same dirty dishes for a week strait?
Are you serious? Why would you do something like that?
She is a bitch and I hate her. Humiliating her like that feels great.
A relationship is based on trust and by betraying your girlfriend's trust, it's not only hazardous to her health, but also you're making yourself look bad. Communicate with your girlfriend and try to come to a reasonable solution about your relationship.
I don't give a shit about my relationship anymore.
If you don't care about your relationship anymore then you should just end it instead of putting her health at risk. It's waste of both you and her time by betraying her trust just so you don't like her. I suggest you to break up with her so both of you can move on.