So.... yeah?

So, I got my period. And whenever I do, I literally become Satan. So sometimes I will be really salty or angry towards people and they are hurt by it I just walk away. So after my weeks over I'll be like:yo. Sorry. And it's fine. But I have this "used to be friend" his names Jason. He doesn't understand the fact I bleed every month. So he had been spamming my phone for hours and I finally snapped and he says this: wtf Olivia why are you such a dick are you actually pms-ing if you are that's disgusting you slut." I've never been more hurt, so now I think that's the way other people feel when I want to be alone on my period. But if you're calling one person on their period a slut, you're also calling most females sluts. The girl he's dating, most of his friends, practically everyone. So why focus on me?