Here is a sort of legend: italicized text is narrated; dialogue will have character's first initial; (text like this means the character is doing something); and regular text is from Sinon's POV always.

"I'm getting married soon."

These were the words that kept repeating in Kirito's head as he drove Asuna home. Her hands held him tight as if she would never let go. Kirito drops Asuna off at her place.

A: "Thank you so much for today, Kirito."

K: "Don't mention it. It was nothing."

A: "You spent a lot of money and time."

K: "..."

A: "Please don't look so sad."

K: "..."

A: "I know I don't have any right to say this any more, but you have to-"

K: "How can I be okay?" (Clenching his fists)

A: "..."

K: "After everything that we've been through. How can you go and get married to some random stranger who's like 10 years older than you?"

A: "You think I want to?!"

K: "..."

A: "You know very well what happened to our company after ALfheim Online."

K: "But what about our promises?"

A: "I love you, and that's never going to change."

K: "But?"

A: "But as the daughter of the former CEO of RECT, there are certain obligations."

K: "Did you mother teach you that line?"

A: (tearing up) "Please, don't be such a jerk. You're making this much harder than it already is. I had thought that after everything we've been through together that you'd understand and be supportive."

K: "I-"

A: "I love you more than anything in the world; it breaks my heart that I'm hurting you so much. I deserve this punishment."

(Kirito grabs her and holds her close)

K: "I'm sorry, Asuna."

(He strokes her hair)

K: "You should know, you don't have to do anything you don't want to."

A: "But-"

K: "Let's runaway together."

(Asuna finally stops crying, leans up and Kirito leans in to kiss her passionately while holding her close. His hands were shaking)

A: "I-I can't." (Pulling away)

K: "..."

A: "I can't abandon my family."

K: "You're my family."

A: "You can't abandon your sister."

K: "Sugu will understand."

A: "No, we are not going to be the reason for each other's strained relationships with our loved ones."

K: "I don't care."

A: "You don't care about Sugu? Please, she adores you. She can't go a day without her onii-chan."

(Asuna kisses his cheek)

A: "We both know that when we started this relationship that stuff like this was gonna come up."

K: "I just didn't expect it to be so soon."

A: "Me neither."

K: "Well, I guess this is it then."

A: "Until we meet again."

K: "I love you."

A: "I love you. Remember what I said."

Kirito drives away leaving Asuna at her gate. He's afraid to look back, knowing that he can't go through with it again. After a while, he gets home where Suguha was waiting for him to eat dinner with her.

S: "Onii-chan, welcome back! Dinner is ready for you if you would be so kind as to join me. Today at school, Recon was-"

K: ""Sorry Sugu, I'm not feeling well at the moment. Why don't you eat first without me?"

S: "But I-"

(Slams)

K: (under his breath) Asuna's gone. Asuna's moving away. Asuna's getting married. Asuna. I love you. Please don't go. Please don't leave. Please stay. Please...