His relationship with her is like a doting obsession.
He is constantly obsessed with giving his love to her.
猫可愛がり
doting on a person, doting is to pour your
love or affection on them
彼は彼の唯一の子供にすべての彼の愛と時間を与えます。
He gives all his love and time to his only child.
彼女との彼の関係は猫可愛がりのようなものです。
His relationship with her is like a doting obsession.
彼はいつも彼女に愛を与えることに夢中です。
He is constantly obsessed with giving his love to her.
アメリカ合衆国 
