Is he cheating?

We've met twice for sex but he still refuses to give me his phone number. We only communicate through tinder and snap. He said that he doesn't want to mix his regular chats with short term hookups but I'm not sure if he's not trying to hide something or not

Updates
4 mo
Just to be clear... I meant that he has a girlfriend he's cheating on... Not that he's cheating on me
Is he cheating?
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