Suddenly, my boyfriend told me he hates my singing? What do I do?

All my friends (even the people with honest opinions) like my voice and singing. My boyfriend used to say that he likes it too but he now tells me that he doesn't and he kept lying cause he didn't wanna "hurt me". But I'm heartbroken. Singing is something that I've been doing since I was 4. I wrote songs about him too. Now I feel like I shouldn't have wasted my time writing about him.
Suddenly, my boyfriend told me he hates my singing? What do I do?
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