Is he single most likely?

He doesn’t use whatsapp that much and is rarely online late at night. Would that mean that he’s single most likely?

We live in Europe. I used to talk to him before. First we started to talk on instagram and then we moved to whatsapp. We used to talk often in the evenings and late nights. He’s 30 so I don't know if he would chat on snapchat if he was seeing someone. Instagram on the otherhand feels not that personal.

Is he single most likely?
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