This is the 7760th most frequent Japanese word.
可愛がる
To treat with affection or care; to cherish.
In this sentence, "可愛がる" is used to express affection and care for her dog.
彼女は犬をとても可愛がっている。
She cherishes her dog very much.
Here, "可愛がる" is applied to a teacher's attitude toward students, implying impartial affection and consideration.
先生は、生徒たちを公平に可愛がらなければなりません。
The teacher must treat all students affectionately and fairly.
In this context, "可愛がる" refers to the fans’ affection for the actor, showing a respectful admiration.