Age gaps when dating?

Okay so I’m currently 18y old. There’s this 34y old guy who I met when I was 16y old who has told me that he fantasizes about me and that he wants to have sex with me a few months back. Back then, he told me that wouldn’t date anyone younger than 25y old but if there’s an 18-19y old who wanted to have fun, then he was down. Now he says that he likes me and wants to date me.
Do u think that’s fishy/weird?
Age gaps when dating?
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