When Ukraine rightly told him to fuck off he decided to pull the plug. It was only later that he made up the thing about cost.
The way it played out could cause some cautious people to look for some assurances. Asking how you can trust someone who has proven himself to be mercurial, thin -skinned and prone to snap decisions, prone to conspiracy thinking, and with a proven track record of retaliation against anyone who questions his decisions up to and including baseless accusations of heinous crimes…
Pretty good question actually.