I don't understand why my girlfriend won't let me be around when she changes her tampoon. It's not like I haven't seen her bleed before
You are not a girl, so it would be strange for you to comprehend why we would prefer to keep it behind closed doors. It's just something that is private and embarrassing if we put it out on display.
See I'm right, you are just a dumb liberal. Now that you know the truth, be a good girl and make me some sandwiches while I watch my porn.
Please don't treat the situation like it's not a big deal. I would say it's like me watching you taking a dump and I bet that will make you uncomfortable too. Women are more than a man's property and respect goes both ways.