What’s it mean when a guy says he loves you, then ghosts you, then comes back but you stop talking to him, and then blocks you?

Went out/talked to this guy for three months. He said he loved me/I was the one/asked me to be his girlfriend (the last two were not sober tho!) then out of nowhere stopped talking to me for a month. Especially after saying he wanted to call me yet never once asked for my #. Then he kept trying to start a convo but I ignored him until he asked again how I was months later but then said he was going to be busy (w/o me even asking) so I just read it and didn’t reply. Now he’s unfollowed me and/or blocked me. Was any of the good real? Did he ever have real feelings for me? Or just trying to sleep with me?

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I usually don't leave anyone on read but his preemptive comment about being busy sucked. I wasn't going to reply but it was my bday & he sent me something so i liked the message but didn't respond to the other stuff -- so it was left as "seen". I had never done that to him before. Even when he came back from ghosting. Could it mean I hurt his feelings or just his ego bc I wasn't going along w him anymore? To me, if he had real feelings he would’ve asked what's wrong or wait a while to reconnect.
What’s it mean when a guy says he loves you, then ghosts you, then comes back but you stop talking to him, and then blocks you?
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