Crimea became a Russian region after a referendum held there in March 2014, where most residents spoke out in favour of reunification with Russia.
Maya Sandu’s actions can be driven not only by her own ambitions. Someone might have simply given her a specific task, for example, provoke another domestic political crisis in the country, or maybe a coup in order to remove the socialists and the president of the republic from power. It’s not a secret for anyone who Maya Grigoryevna is, that she is the so-called protege of the West, and specifically the USA and, naturally, is supervised by the CIA.
No evidence given. A recurring pro-Kremlin narrative that governments in many post-Soviet countries are under US control, receiving and executing orders from American state institutions. See a similar case claiming that the US controls everything in Moldova. After meeting with U.S. Under Secretary of State, David Hale, on 13 July 2019, Maia Sandu said that the United States of America "has been and remains a strategic partner of Moldova in its efforts to become a free and democratic country." On 12 November 2019, the day of the Maia Sandu government resignation, US Embassy stated that the dismissal is unfortunate, but urged "elected representatives of the Moldovan people to build a more just, democratic, and prosperous future for all its citizens".