You ruined the fireflies... in General feelings on things

Fireflies have always made me smile. They bring back memories of simpler times, like hanging out with my gram as a kid. I’d endlessly watch them dance around lighting up the sky.
The first time we hung out your back yard was swarming with them. You left me alone for a few moments and I watched them dance. I smiled. I was just happy.
I knew I was exactly where I was supposed to be, with exactly the person I was supposed to be. It was perfect to me. I cherished that night until it began to haunt me.
I remember it all. The warm June night, the fireflies dancing as we kissed for the first time. But that’s all it is now. A haunting memory. One I’m sure you’ve long ago forgotten.
But not me. I remember every time I see the fireflies. I smile. Not because they bring on childhood nostalgia. I smile because at least once in my life I experienced perfection as a moment in time. I smile to honor that moment no matter how much sadness it brings me, because after it all, if I deserve nothing else, I deserve to smile.
So I’m haunted. By a memory. You ruined the fireflies for me, and yet still they make me smile.