I get the feeling you're willfully playing dumb, but to take it step by step:

Now, after having proven that deals mean nothing both in Ukraine and Iran, the only sensible move is to develop nuclear weapons.

Prior to us having broken both of these deals, there was a believable argument for the US being an honest broker who can ensure security in lieu of you having your own nuclear weapons.

> Except there never was any plan or idea on how to get another deal

What do you mean? You do the same thing again: economic normalization for non-proliferation.