And just like that, the honeymoon is over.  Gov. Hochul believed she was on the cusp of a beautiful relationship with Mayor Mamdani — until he rudely reminded her that the socialist agenda remains his one true love.  His “Dear Kathy” letter came wrapped in a public ultimatum. Because of a deficit he inherited and his extravagant spending plans, he suddenly needed her help getting billions of dollars.  He told her he would be forced to raise city property taxes by a whopping 10% unless she