Just when the market believed that the matter between the United States and Iran was about to come to an end, the situation once again took a turn.

Mainly because the United States and Iran have not yet reached an agreement on the nuclear deal, so the US sanctions on Iran are still ongoing, continuing until the nuclear agreement is reached, and in response to this situation, Iran has again blocked the Strait of Hormuz, or rather, Iran has never truly opened the Strait of Hormuz.
It feels like the situation has returned to the starting point, but it is indeed observable that this time the negotiations are closer to reaching an agreement than ever before, and I also believe that an actual agreement will not be too far off.