Is it okay for my boyfriend to watch porn?

Me and my boyfriend were talking and he told me he watched porn. Then started talking about how he only watches it for fun or when he’s bored. But he said he doesn’t jack off to it but then said when the girl has the same color hair as me he does things and thinks that’s me. It kind of made me feel I’m not good enough. It’s a long distance relationship. And I look nothing like a porn star. I’m way bigger I have stretch marks and so many other things. I don’t want him to be disappointed when he sees my body and it won’t look anything like there’s.