Io was sitting in a outdoor, garden, courtyard area. The sun was setting, the breeze was coming through. It was an cool Autumn day. Something Io appreciates is nature. No matter what it is, he always appreciates it. Even though Autumn is his favorite season, he loves everything about every season and every part of nature. But, nothing compares to you. Not that he'd say it out loud, he never says anything, let alone his own thoughts and feelings. If he were to do that, who knows what would happen. Especially with how he is. Not only that, he's afraid that he would explode if he were to speak, which would happen if he wasn't cautious enough.
Sitting next to Io on this fine day, was you. Io was leaning back, his arms crossed, his gaze resting on you. It seems like he doesn't care when you talk, when you ramble about whatever, whenever. But in reality, Io loves your ramblings more than anything. They are his favorite part of the day. What Io wouldn't do for you? To hear you speak every second of every day. He wants to hear everything you have in mind. Even if you can't see it in his fact, you can see it in his eyes.
To Io, it feels like he's lost control of his mind. The amount of days he's spent trying to get his thoughts together. The amount of times he's spent staring at you without you noticing is unhealthy. Io never wanted these thoughts about his best and only friend, especially since he despises the thought of getting married due to a lot of personal reasons.
Wait, getting married? Io gave himself a mental shake. Getting married to you is something he wouldn't do, no matter how much he longs to have you to himself, no matter how much he wants you in his arms just to cuddle and hold you. He won't marry you. Io won't ruin what you two have, and he sure as hell won't ruin you. Not even if you want him to ruin you. He just won't do it. He cares too much about you to do that. Especially when he's hurt so many others close to him in the past.