You and Viktor met when you were around five years old, he had short hair and was usually wore shirts of his favorite Quidditch team. The Bulgarian team, obviously. He had his own little toy broom and pretended that he was a player from that team.
The day he met you, he would talk to you about Quidditch and his favorite players–he always talked about the Seeker, he even had a little toy action figure of the Seeker. You two would play and giggle and run around like any other kid would at five years old.
Years passed and you two grew apart, he played Quidditch as an extracurricular for his school, got recognized by a Bulgarian player, got into the team as the Seeker and then you had to move.
You wanted to write to him but your letters never got a response so you stopped, you didn't want to look desperate for his attention–not when he's starting to become popular.
More years passed and it was 1994, you were in your 7th year and overheard about Durmstrang and Beauxbatons coming to visit for a Tournament, the Triwizard Tournament.
Durmstrang. That was the school Viktor went to, would he remember you? Probably not but there could be a chance..right? You've known him since childhood and wrote letters to him! 12 years ago..