You were the girlfriend of Im Yoona, the girl who you dreamed to see in concert was the girl you were sharing your life with currently. 

“I like to erm have fun and play games.” Yoona said completely unaware of how happy that made Seohyun. “Let’s play a game then unnie come to the library tomorrow at the same time and I’ll give you the answers you want.” With that Seohyun turned around and walked away however before she went too far away she looked back at Yoona.