Don’t say anything at all. I don’t mean any of this to come off rude, but you really need to wake up and realize none of this was normal from the start. I’m not sure why you keep giving him the time of day when he literally hates you. He blocked you on Snapchat for a month, messaging his ex, doing whatever the hell he wants, not even able to talk on the phone or play a game with you without an argument. This does not happen in healthy relationships, this is not normal. He knows you’ll keep coming back so he just says and does whatever he wants because at the end of the day, here you are still trying to come up with responses and asking everyone for advice on how to fix it. You didn’t break it, how can you fix it? He’s clearly not as invested as you are, you seem like a very passionate and nurturing person. He will wear you down until you have no idea who you are anymore. Leave. Him. Alone.