Norway leaving the union with Sweden in 1905 is famously one of the very few times secession was done non-violently. But to be fair there was large political pressure from Swedish socal democrats that urged the king not to go to war and the Sweds and Norwegians liked each other and remained good friends and allies afterwards.
Maybe if both parties start to work on the relationship and get friendly right away, then you could maybe have a peaceful resolution in 50 to 100 years time.
I'm getting into this habit as I'm getting older. I dont want that much and I rarely find stuff I really like, so when I do I just get multiple and I feel lucky I don't have to go shopping for that item for years.