にぞっこん

head over heels in love with

→ に
phrase Rare #42,046
head over heels in love with Used with に to mark the person someone is deeply infatuated with.
JA: 彼は彼女にぞっこんだ。
EN: He’s head over heels in love with her.

彼女にぞっこんだったのは本当だよ。

It's true that I was head over heels for her.

彼が妻にぞっこんで、そんなことを考えるはずもないのは、私にはよくわかっていた。

I knew full well he was crazy about his wife and would never even consider doing something like that.

あいつはメアリーにぞっこんなんだよ。

He’s head over heels for Mary.

あなたにぞっこんです。

I'm head over heels for you.