Galaxy S7 is not receiving text messages from just one person


    I recently discovered that an old friend of mine is not dead.  I thought maybe he was because I sent him about 20 texts over the last year and never received a single response.  I met up with him in person and he showed me all the responses he sent on his Iphone,  I never got them.  This is the only person from my entire contact list that this has happened with.  How can I fix this?

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