Confused or just dumb?

What does this even mean?

I’ve been dating this guy for years now and we do stuff like cooking together, road trips, eat out etc. the other night he came over to my apartment and we cooked dinner together and he made a comment along the lines of “once I’m done with you, you’re going to be eating spicy food like nothing”. I didn’t think too much of it at the time. But now I’m really like what does that mean? He knows I like him like him, we’ve been through some shit together. I just don’t understand his comment.