I like him a lot but he talks about comics/marvel for 40 mins help? is this a red flag?

I have talked to this guy for 3 weeks. he goes on longgg stories. today he talked to me about marvel movies and comics for 40 mins. I did not ask him about it but he continued to tell me every piece and random story he liked. even sent me vids to watch. Is this normal is he just excited to talk to me or is this a red flag?

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I dont mind talking about passions 15-20 mins but it was going on for almost an hour. And i hadn't said a word trying to follow. I was really interested first 20 mins he was so passionate was cute but then i got conf where this story was even going or when itd end
I like him a lot but he talks about comics/marvel for 40 mins help? is this a red flag?
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