Why My boyfriend hide me from his family?

Me and my boyfriend have been together for a year. He hides me from his family. He said it because the religion. He is a Christian. We always fight these days because of that.
Cause now he is in his parent's place for a month. Whenever I called him and someone came to him, he ended the call. Our communication becomes lack because of his situation (around family). When I asked him when he will tell about us to his family he always say later. I'm really upset now. Should I end relationship because of that? But it's torture me
Why My boyfriend hide me from his family?
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