I just realized the video I posted is the short version of the ad. In the longer version, the girl states that her father died when she was 2 years old.
So the guy writes a letter to the girl's father, knowing that he is going to read it to her, and her father will never get the letter BECAUSE HE HAS BEEN DEAD SINCE SHE WAS TWO. Also, the girl didn't get to know her father BECAUSE HE DIED WHEN SHE WAS TWO. If not creepy, at least very weird. Of course there are actors in the advertisement and the situation probably never happened and they are acting like it was romantic. If this were tried by a real guy ,it would be weird and creepy.