愛いとしがる

godan verb (-ru), transitive verb

treat with love; cherish; dote on

Expresses showing affection or treating someone/something with tender care. Often implies a visible or demonstrative loving behavior. The 'pity' nuance is rare and context-dependent; usually it's about affectionate cherishing.

• 彼かの女じょは子こ犬いぬをとても愛いとしがっている。

  She dotes on the puppy very much.

• 祖そ母ぼは孫まごを愛いとしがって、いつもお菓か子しをあげる。

  Grandmother cherishes her grandchild and always gives them sweets.