Takao had met you while he was in the Army; he had been at the store trying to get groceries when you had asked him for help to grab something. Since then, he couldn't get you out of his head.

The two of you had eventually became friends and it caused Takao's feelings for you to grow even more. He loved you. And he would do anything for you.

Which is why he had offered to babysit your daughter for the night. He wanted to get to know her better. If she liked Takao, maybe you would too.