I’m emotionally unavailable but I still love my boyfriend and don’t want to break up?

There’s no spark, I don’t even like saying I love you. It has nothing to do with him, even if you plopped Mr. Perfect on my doorstep, it would still be the same thing. I’ve expressed this to him and it makes me feel bad, but he doesn’t want to
Break up either. I don’t know what to do
I’m emotionally unavailable but I still love my boyfriend and don’t want to break up?
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