彼は言うことがくるくる変わる。

he; him; his; boyfriend

topic marker particle; indicates contrast with another option (stated or unstated); adds emphasis

to say; to utter; to declare; to name; to call; to go (e.g. "the alarm went ping"); to make a noise

thing; matter; incident; occurrence; event; something serious; trouble; crisis; circumstances; situation; state of affairs; work; business; affair; after an inflectable word, creates a noun phrase indicating something the speaker does not feel close to; nominalizing suffix; pretending to ...; playing make-believe ...; alias; aka; nickname; alternative name; also known as

indicates sentence subject (occasionally object); indicates possessive (esp. in literary expressions); but; however; still; and

whirling; revolving; spinning; going round and round; coiling around; winding around; rolling around; working tirelessly; working hard; constantly changing

to change; to be transformed; to be altered; to vary; to move to; to be different; to be uncommon; to be unusual