A: John said he met a girl yesterday and took a shine to her right away.

    B: That’s good for him since he has been quite depressed after breaking up with Susan.

    A: I wish he could get out from under her shadow quickly

    Note: The idiom means “to become fond of, to form a quick liking to.”

    This American saying dates back to the 1880s and probably originated from an earlier expression, “to shine up to someone.” That meant to behave nicely so someone will like you.