I gave a guy a compliment and he ignored me?

I texted my crush who I already hooked up with a few months ago and stay friendly with him. I said.. hey you're a really good kisser. and he ignored me. left me on read. I gave a compliment and he ignored it. I think that's messed up. Why would a guy do that? at least say, hey thanks. or something?
I gave a guy a compliment and he ignored me?
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