You can’t ask perfect strangers, online, to diagnose this guy they have never met. He is the only one with the answer, he’s the only one who knows what he thinks or feels, so that’s the person you need to ask. From an outsider, based on what you wrote, its creepy that he calls but doesn’t talk. If you don’t have the guts to outright ask him, then you’ll never know. So just ask him, and your question will be solved.
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