Convincing boyfriend to implement the Konmari method with me?

My boyfriend and I live together, and we have a LOT of stuff. I’ll sometimes go through my things and get rid of some stuff, but I know I still have many other unnecessary items in my possession. We’re planning on moving again in July, and the last move was so miserable that I know something needs to change.

I came across this subreddit, and really want to get the books and start getting rid of the things I don’t need.

However, I don’t think it will make as drastic of a difference in my life as it could if he was on board with this as well. Even if I get rid of a bunch of my stuff, we’d still have all of his stuff around still.

I haven’t brought it up yet because I’m worried he’s going to say no. I’m just wondering, have any of you guys gotten your significant others into this method? How did you bring it up, and if there were negative reactions how were you able to get past those?