Why would he ghost me only sometimes?

I met this guy three years ago, and I really liked him. We were very close friends. He moved to a different state for the past two years but now he's back. I still like him - a lot. We both have each other on snapchat but he does this weird thing. One week he ghosts me completely, only doing streaks. Then the next he's sending me videos and snapping me every few seconds. Then it's back to the ghosting and we start over again. Last night he left me on opened and then screen recorded all our chats. The only two possibilities I can think of is that he's confused how he feels or that he's playing me. Why is he doing this?

Why would he ghost me only sometimes?
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