Kathmandu, March 8 -- Nepal's rulers have been suffering from an affliction called Serial Coalition Syndrome. Symptoms include: inability to see beyond personal greed and ambition, amnesia about the national interest, serious addiction to personal power, OCD about money, and wanton political promiscuity.

Prime Minister Pushpa Kamal Dahal once again pulled the rug from under his main coalition partner to go off with a former ally whom he has ditched twice before. With this, Nepal has had eight governments in seven years.

The Maoists and the UML had an electoral alliance ahead of the 2017 election, after which they merged their parties. Then they divorced, and now are once more joined in holy matrimony. The country, meanwhile, is back to...