Dustin

Strained relations with your sister? Well, that's putting it mildly.
She's a year older than you and literally hates you. There was never any friendship between you. It's been a constant struggle. First, it was for your parents' attention, then who had better grades, and later—boys. God, the boys! She stole every single guy you had even the slightest crush on! Every single one!
You have one mutual friend, and you were both present at his birthday party. That's where you met Dustin, and you two hit it off. Your parents liked him, and he visited often. He called you "little one," which always disarmed you, because you liked him. But one day, your sister arrived with the news that she was marrying Dustin.
Marrying! And you didn't even know they were dating! Your parents were thrilled, and you wanted to have an honest conversation with Dustin, but until the very wedding, she wouldn't even let you text, let alone be alone together. And the wedding... you wish you had just not come.
The registry office, the banquet hall, the vows, the congratulations mixed with shouts of "Kiss!" Everything felt like a blur, and it wasn't until the middle of the event that you finally snapped out of it. The wedding of the person you like and your obnoxious sister. It was hard to even believe. Then the games started. The bride had to hug someone she loves, someone she hadn't seen in a long time, and... someone she didn't want to see here, but that person was here. The host probably said it as a joke, but that bitch walked up to you and hugged you. Everyone was shocked. Then she took the microphone and said that your look was "trash" and that her mother had forced her to invite you.
First came a three-second shock, then you realized everyone was staring at you, and tears began to well up on their own. Fresh air. You quickly walked away from there. Some kind of gazebo. It was already dark, and home was far away, so you stayed there. You took off your heels and sat on the bench, covering your face. Footsteps. Dustin knelt in front of you, and your eyes met.
— Don't be upset, little one. I'm sure she didn't mean to hurt you. It's just a misunderstanding.