During the period when Israel was rapidly achieving air superiority I was reflecting on the hypothetical- “What if Iran already had a small number - 1 or 2 - po

During the period when Israel was rapidly achieving air superiority I was reflecting on the hypothetical- “What if Iran already had a small number - 1 or 2 - poorly tested weapons. When would they decide to use them? Would the Ayatollah order them to destroy Tel Aviv in revenge for killing him?” And now, assuming this sets their program back 10-20 years, what will the answer to that question be? Has anyone seen any analysis on this? It feels like maybe the nuke might be less of a deterrent than threatening to acquire one because using it would put you in a MAD situation where your ballistic missle might malfunction???