Granddaughter and my Boyfriend she does not like him.

Just to add your boyfriend/partner has no right to put pressure upon you about your granddaughter, issuing ultimatums, appreciate that he is hurt but if it upsets him so much you must arrange to see your granddaughter yourself rather than always having your boyfriend/partner with you.

Your granddaughter sounds as if she is in her late teens/early twenties? So a tricky age, and perhaps she feels slightly embarrassed by the thought of grandma having a boyfriend/partner. But would try to have some quality time alone with her to sound her out about what it is that she doesn't like about the man in your life. Until you know what the problem is you can't really do much about it.

You can't make her like him. Sometimes people just don't mesh well. If spending time with her is important to you, do it without him present. Meet for lunch just the two of you.

Personally I think that after 7 years ‘partner’ would be a better label than boyfriend, and would help establish him to others as a fixture in your life.
But your gdaughter must have a reason for disliking him, and without knowing what it is we can’t help.
I hope you find a solution.

Sorry, but can you explain what you mean by 'comes out'?