There is a whole bunch of history from the Ottoman period that doesn’t ever see the light of day. For example, the Jesuits in the Ottoman Empire took advantage of the situation when the Greek hierarchs asked them to help educate their flock. To their credit, they did give them an education, before promptly beginning to engage in sheep-stealing. But not the normal kind where you try to convert people and have them formally declare their defection—they converted them in secret, and told them to continue living in public as if they had not defected at all.
From this very successful campaign, the Melkite Church in submission to the papacy was born (I say submission because submission to Rome is precisely what the Jesuits encouraged Orthodox clergy and laymen to do—they would defect in secret by sending a
letter of submission to Rome), when after a significant portion of clergy and laymen had submitted to Rome in secret, they broke away to enter into union with Rome formally, after the disputed election of one of their partisans, Seraphim (Cyril IV) Tanas, to the patriarchal throne. Cyril IV even attempted to repeat this victory in Alexandria, sending a priest to masquerade as the legitimate patriarch of Alexandria. The partisans of the pro-papal party even went so far as to attempt to appeal to the Ottoman authorities to suppress the Orthodox patriarch of Alexandria. This time they failed, partially because the Ottoman authorities refused to suppress the patriarch of Alexandria, but also because of the efforts of certain figures like Eustratius Argenti (this is all explained rather well in Metropolitan Kallistos Ware’s study of Eustratius Argenti).
Thankfully, the Latins today have turned all friendly and sweet, but is it really that incomprehensible that Greeks and Arabs in particular should feel some degree of suspicion after essentially being subjected to several centuries of abuse at the hands of Jesuits? Yet according to some, we’re the hateful ones with little brother syndrome.