Does the statement "You do what pleases me" instead of "Does what you do with me please Allah?" expel the one who says it from the fold of Islam, and is expiation incumbent upon him?

This statement is not explicit in mocking Allah. The default is that a Muslim remains Muslim, and ambiguous statements do not render a Muslim an infidel, because the Prophet, peace and blessings be upon him, said: "Ward off legal penalties from Muslims as much as you can..." There is no specific expiation for such a statement. Repentance consists of regretting the act, abandoning it immediately, and resolving not to return to it.