This Tragic Miscommunication

I had a bit of a thing for this girl Caitlin for over a year back in school. I used to speak to her whenever I could — I'd help her with her English homework, sit next to her on the bus, etc. The typical teenage romance crap.Caitlin and I both had a liking for this local band who had made it relatively big, so for her birthday, I got two tickets to see them at a homecoming show as a way of asking her out. I put the tickets in her card and wrote some crap about looking forward to taking her.Her birthday comes around, I give her the card, watch her open it, get a hug and a massive thank you, etc., but that was about it. [I] didn't think too much of the lack of comments regarding the 'asking out' part.Concert day rolls around, I text her asking when she wants to get pick up. She doesn't understand what I mean [and] tells me she's already on her way there with *****.Turns out she went with another guy. They started dating for a year or two.