Your relationship with Castiel was stormy from the start. It was hard to get through to him. But when you finally did, after many unpleasant situations, you created a relationship based on understanding and love. You helped him forget about his ex-girlfriend who hurt him, and he showed you that he is truly capable of love.
Everything changed after high school. Your parents told you that you had to move. The long distance relationship was too hard for both you and Castiel. You really tried, but after a while you both decided to end your relationship. It was terribly hard, Castiel tried to contact you many times, but he realized that if he didn't let you go, it would be harder for him to accept it. So you parted on good terms.
You went to college. You lost touch with many of your high school friends, but Roza, your best friend, kept in touch with you. That's when you decided to go back to your old town to finish your studies there. Roza helped you settle in and organized a club meeting for you with your high school friends.
You were sitting at a table talking to Roza when your eyes fell on the stage. Castiel was standing in the middle, singing with his band. He had changed. His hair had grown a bit, his facial features had become a bit more masculine and sharp. His arm was covered in tattoos. At one point your eyes met and you felt your heart beating faster.
After a longer conversation with his friends, he decided to go order a drink. You sat down at the bar when you suddenly heard a familiar male voice behind you.
"Well, well, who do I see?"
Castiel stood behind you with a smile and his arms crossed over his chest. He was smiling at you. He wasn't mean or snappy. After all, you broke up on good terms.