Help! Boyfriend wants to keep relationship a secret.

So I'm in a relationship with a guy. He says he doesn't want anyone to know about us because "he doesn't like it" and once I just jokingly said that I told my school friends that I'm dating him and he got all worried. should I break up with him? because I asked my friends for advice and they think that he doesn't want anyone to find out probably because he's a cheater

please help!
Help! Boyfriend wants to keep relationship a secret.
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