Why did he block our friend group on socials but still want to stay on iMessage?

So he blocked me and my best friend on snap where we talked daily and he unfollow us on instagram but when we texted him on iMessage about it he said he was getting rid of social media because it was a distraction and we still had his number but he barely responds to our texts. Also why would you block and unfollow certain people before deleting an app? He says we are being childish because we feel like there’s more to it. We were a really close friend group and we only ever used snap to talk. Is he trying to say more without saying it? Should we just stop being friends with him? Are we being childish thinking that there’s more to the story? He barely texts us back and just posted on instagram so we know he didn’t delete the apps he just blocked us. Shouldn’t he be unadding the people who aren’t his friends rather than his close friends?
Why did he block our friend group on socials but still want to stay on iMessage?
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