Thinking about your first love

Is it wrong to think about your "first love" every once in a while? Once or twice a year I'll have a quick thought about my highschool sweetheart. Its been 10 years... I just wonder quickly how he's doing or what he's been up to. He doesn't have nor has he ever used social media and he moved away like 8 years ago so I have no clue what his life has been like and I guess I'm just curious. Is that wrong? Weird? can anyone relate?