He remembered this man; last time, he had seen him through binoculars on the balcony!
At that time, he had even asked the woman of his family.
The woman of his house had adamantly denied dating this man, insisting it was just a friend of a friend who had dropped her off! He was indeed too young and had believed the woman's words.
If it really were just a friend of a friend, how could he have been allowed into her house?
What's more, without his permission, he had worn his beloved slippers! Even more importantly, he smelled that same wild man's scent on this man that he had last smelled at home!