I like it(づ ̄ ³ ̄)づ
First of all, he is now a child, he can love a girl his age in his current body. You mean, like, at the age of the body, he is going to date a 40-year-old woman? really? and just because you're kind of parallel to romance, it's welcome in this story. he has not even had this opportunity in the past. neither to family nor to love.
So leave it softer.
I love this story