First of all, I just want to say to you that I'm happy that you've been by my side for 4 years.

Those memories will always be in my heart. Forever.

Even when I know that you were never happy with me.

I know...

I know that you're still in-love with him. Your ex-boyfriend.

And I know that I'm a fool for denying it.

I should have noticed.

Even when we're together, your heart still belongs to him.

Even when you said that our relationship is the best thing that ever happened to you. I know that you didn't mean it.

Especially now that he wants you back.

Your ex-boyfriend, my best friend.

Am I right?

That's why you wanted to break up, right?

I'm not a fool. I only became one because of you.

All I want is your happiness so even if it hurts, this is for the best.

I'm letting you go.

You belong with him, not me.

I love you, just forget that our relationship never happened.

Your soon-to-be-ex-boyfriend, 

Kwon Jiyong

"Are you really not going to regret this?" His friend, Lee Seunghyun aka Seungri asked.
"I'm going to regret not letting her go" Kwon Jiyong said. "I just want her happiness" he said.
"So...you really want me to give this to her" Seungri asked as he held the letter that Jiyong gave him.
"Yes" Jiyong said.
"Hyung, you don't have to leave" Seungri told him.
"I...I can't stay here" Jiyong told him.
"Wae? Why can't you? Just because you broke up with Dara-noona, you're going to flee?" Seungri snapped.
"Just. Just take care of her, hmmm?" Jiyong said as he held both Seungri's shoulder.
"Hyung, don't leave" Seungri said and hugged him.
"I have to" Jiyong said.
"Just promise me that you'll be fine" Seungri said.
"I promise" Jiyong said.

That was the last day Jiyong stayed in Seoul. The next day, Seungri gave the letter to Dara, Jiyong's soon-to-be-ex.

"What is this?" Dara asked.
"Just read it" Seungri said and walked away after giving the letter to Dara.

Dara just stared at the envelope, wondering who gave it.

"Yah, what's that?" her friend, Park Bom asked.
"Seungri gave it to me" Dara answered.
"Ooh! Is that a love letter?" Bom teased. "Yah, you really are famous, ayy"
"That's not going to happen" Dara said. "Have you seen Jiyong?" she asked.
"I doubt that he's going to see you after what you said" Bom said. "What? Are you guilty?" she asked.
"I want to see him"