Which BL couple do you think will eventually break up/divorce and why?

Maybe because I'm a pessimist but for me it's Baek Youngchan and Seo Hyunsoo.
I love them and I think they'll last but I think they're going to eventually break up. Either Youngchan will fell out of love after some time or it'll be mutual decision to part ways.

I always think that Black cat × Golden retriever couples doesn't last. So yeah.