"Never leave my side." I said. "Literally wouldn't dream of it." You replied. "Do you really mean that?" I would ask you later that night as we sat on the couch, wine bottles out and Jurassic Park already playing. "Of course I do." You promised me. 

You never kept your promise.

As I stand here in your empty bedroom, looking at you as you wait for an Uber outside to take you to the airport.  I'd wanted to drive you there, but you said you'd wanted to keep our goodbye private, that you didn't want everybody to see you cry, even though we both know they will anyway. I'm still trying to figure out why you still decided to leave after I told you I wouldn't go with you. You kept talking about how you didn't want to, but I think it was more that you didn't want to leave me. I mean, sure it's only two years, but a lot can happen in two years. You could always meet someone and decide to stay with them. But I'm not going to think about that right now. 

Now I'll try to distract myself from how unbearable this is to watch, and hope that you'll look forward to being back with me as much as I will. I'd always said that we'd be together forever, after all, and I still want to stand by that. Now I'm really starting to regret saying no when you asked me, and I'm considering running out to stand beside you and buy a ticket at the airport to join you. But I know I can't, so for mow I'll just tell you this: 

 I tucked a note into your bag when you weren't looking, and I smile as i see you look into your bag and pull it out, and I start crying as you look up to meet my eyes, though you probably can't see me, with tears filling your eyes and staining your face, as you mouth four simple words that give me the hope that you'll return to me again. 

"You're my best friend."