Maybe I just need to vent, but omg how hard can this get?

I'll be a little methaphoric here. My SO got in a rage last week because while speaking about bubblegum he thought (wrongly) that I implied that I didn't trusted him and says that each time we speak about bubblegum I do the same. 

So he decides the best way to keep our relationship going smoothly is to never speak about bubblegum and if I did we were done. I don't make a big deal out of it, but later I notice that even when speaking about lollipops, or any other kind of candy whatsoever he gets defensive or distant. I tried over the days to see if there was any improvement but nothig happens.

There I go, applying all the sugestions, speaking truly from a love and caring position, I told him that I used to love our talks about candies and asked him if we could do it like we did before, not bubbelgum as he didn't wanted to, just some other candies. Raging he tells me that I'm doing it again, that he told me he didn't wanted to speak about it, and why couldn't I respect that, of course reminding me what would happen if I did.  

I tried to explain the importance of it and how speaking about other candies didn't mean we should speak about bubblegum as he asked not to. "well, I don't want to speak about candy, ever, is that clear?, I'm gonna let this one pass but next time we're done, ok?" and he left. 

WTF?!!! What now?? :( 