Iran's government is a polar opposite of those of European countries; but neither was directly threatening each other. Iran's main goal has always been attacking Israel; while supporting a lot of regional fighting.
"Europe" (not a single nation as many Americans seem to think) has not been impotent at all, and is far more likely than Israel and the USA to restore some sort of mutual peace simply by resisting Trump's inconsistent demands to join his and Netanyahu's war.
Most European nations are also far less keen than those two over-powerful men simply to destroy the country. They know that will help no-one but will cause serious problems dragging on for years yet.
How Iran sees each of these countries after the present war ends (whenever and however that will be), will depend much on what they do individually. They have no real dispute with Iran, but Iran will likely see them as supporters of their enemy.
