Know what's the worst part of baking cookies? Getting used to being able to go to the kitchen and just eat a cookie, or even better, some leftover cookie dough you saved in the fridge, and then having none left.
Then you have no choice but to eat yet another handful of your roommates chocolate chips that she probably actually wanted to use to bake cookies and you hope that she doesn't try anytime soon or notice that her supply is slowly going down, and she is moving out soon so maybe she'll just leave them? Then you remember that she at least read your blog once before and might still read it and might now know that you just ate a handful of her chocolate chips and have probably done it at least one other time in the past.
Sorry, roomie. Hugs?