First break up

I’m going through my first real breakup and genuinely I’m heartbroken. I can’t stop thinking about him. I think the worst part of it is it came out of no where. He was so intentional, so interested, so sweet for almost 2 months and I felt so secure, and then he flipped a switch and ended things. He gave me a dumb reason for the break up that honestly didn’t even make sense, so I don’t even feel like I have closure or know the real reason why things ended. He unfollowed me on social media and stopped going to places where we used to run into each other. I feel like in other situations where a man let me down, he was pulling away for so long before actually ending things so I had time to prepare and see it coming. This came out of no where and all I want to do is text him, call him, ask him to meet up but honestly I wouldn’t be surprised if he deleted my number. And he’s the one who ended it so clearly he doesn’t want to see me. We went from seeing each other every day to not seeing each other at all overnight and I’m just so sad.