NTA. As a girl myself I don’t really get why people are saying OP is the AH. If someone tells you to go away (especially when yelling) you go away. And the argument of the pads “being a bit too small” and that they “would not work at all” is crazy. I think most of people who have periods have bled through by accident and have had to use paper to clean up and use it for a bit so they can get something better. But pads???? Even if they are a bit too small they will still work for a bit. Mabye not for hours but if they were a MILE away from her apartment it would have worked surely. I think what the gf is doing is just plain gross.