What does the constant disappearing mean?

I have this guy I grew up with. We recently got in contact and he this year. He hit me up first, and he would find little ways to hit me up here and there. He admitted that he found me attractive too, but he never did anything about it. He continued to float in and out of my life by swiping up on my instagram notes or my stories. Sometimes he would drag and say it’s because he’s so bad at responding to dms. One night we ended up opening up about stuff in our past til four in the morning. We talked about our old relationships and whenever I mentioned the name of the guy he would search them up on instagram to see how they looked like. He also mentioned how he doesn’t know how to approach women anymore because of his hurt past. Also he mentioned finding some girl cute but saying he wouldn’t be with her because she’s far away. That same night he made plans to hang out with me the next morning. We hung out and we had a good time. He texted me right after apologizing if he was acting a little weird even though he wasn’t, and then he continued to make conversation for days then he pulled away for days. Suddenly he hit me up again asking me how my day was but he drags? What does all this really mean?

What does the constant disappearing mean?
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