My SO(m34) told me(f29) I was the knower of all things of unimportance.

(Some background I am very into fun facts and life hacks, and I am kinda known for it in my friends groups, I’m not annoying about it but if a topic comes up I do share my knowledge. This is something my SO has even appreciated earlier on in our relationship of 3 years, and loved when I would make hand written notes with cute drawings and fun facts on them.)

Story time, the other day my SO came into the room while I was in the middle of working from home to ask if I knew what the weather was for the day, I said why don’t you check your phone, he said well I figured you would know as your the knower of all things of unimportance.

This kinda took me back a bit and I was a little upset so I decide I’m just going to keep to myself today as a comment like that isn’t exactly out of the ordinary for him. Fast forward to later in the day and my significant other and I are getting ready to have dinner, he asked why I’ve been so moody today, I explained that what he said about me being the knower of all things unimportant was rude and he corrected me and said he said no I called you the knower of all things of unimportance and that im always spewing out fun facts, and that he doesnt see how that would upset me that he said it. I told him if I have to explain why it upset me then he doesnt really know me, and that if he did know me that he would know I love all things research and learning. He said that it was clearly a joke and that it was obvious because he was laughing when he said it. He then continued to say I’m sure you know like 10 facts about your dogs breeds, and then said I’m sure you even know facts about my dogs breed, to which I said yes I do because if you own a dogs you should know facts about them and he responded with well I don’t even know 2 facts about my own dogs breed (as if he was trying to prove a point).

I basically gave up at that point because there’s no point in arguing further on the topic.

TL;DR, my SO told me I was the knower of all things of unimportance and that I should have known it’s a joke.

Am I overreacting for being upset about this?