Narcissist Blocked My number

My narc ex just blocked me last night. Two weeks ago, I initiated No Contact. He would not leave me alone and was begging me. I caved two days ago... I answered his text. Just to tell him goodbye again. Then he said I was cut off. So last night I sent him chocolates because I felt bad for telling him goodbye. Then I text him... he said leave me alone forever. I tried to apologize, he said text me one more time and you're blocked. I called and then he blocked me. I wanted to say something nasty to him but I couldn't. I feel like he may have unblocked me but I don't want to check. I feelso helpless and worthless. He was just begging me not to leave two weeks ago... now he actually blocked me?!! I didn't think he really would... I know he has a new supply. He won't ever admit it to me, but I figured it out over a month ago. I can't stop thinking about him and obsessing. I don't know what to do. I just feel like I'm in a pit of emptiness. I also have BPD so I go back and forth between loving him and hating him. I have a feeling he may have unblocked me but I am too scared to text him
Again and try to find out. I sent a text that said whatever dude. That he's a piece of trash. That I'm way out of
His league and I laid out some insults to the things he's most insecure about. It didn't go through bc I was blocked. I want to send it again but I'm not sure what would happen. My head is spinning and my thoughts are circulating. He was just begging me not to leave, he's never that before. He actually blocked me! I'm so hurt and empty.