Condition wise I suffer seasonal depressed and the line of depression comes from my father's side starting, most evidently, with my grandfather. My sibling has depression to, but all three of us have different forms and handle it in different ways.

Although this image is based off of what I was personally going through in a physical and mental sense, his depressive personality and reactions to such situations are based on a multitude of individuals in my family; primarily my sibling and grandfather.

For example when I'm depressed I go through secluded and private episodes or breakdowns. My breakdowns normally include staring at objects (generally walls) for prolonged periods of time (anywhere between 2-5 hours). As a general rule after an episode, for me at least, I force myself to complete whatever is bothering me within a few hours. I also become compulsive at things like cleaning and will become an insomniac with a loss of appetite regardless if I'm breaking down or not. My episodes are often bought on by a sense of personal failure or shame.

My sibling often will often become disorganized and spend the majority of their time indoors. But has a higher tendency to avoid doing what they need to do to overcome their fear and in essence, accept the depression instead of fighting it. Their trigger often seems to be caused from a sense of loss or missed opportunity and their duration often lasts longer than mine.

My grandfather often showed a sense of apathy and silence but due to his gruff nature it was harder to notice. Although he would take prolonged walks in the middle of the night, a similar trait I share with him except I do my walks in parks and at noon. 

So Antoine, like me, is triggered into depressive episodes when he has a sense of personal failure. Like my sister, avoids his depression and prefers to no mention anything that would trigger bad memories. The latter is a partial reason why he refuses to leave his current compound because he knows no one there and no one can "judge" him for what really bothers him. Partially because he's a "transfer" and partially because most of the people living there are too jaded with their own personal problems or success to realize anyone else's or care about them. So this allows him to express negative feelings in public (less emotional than this) and private without being viewed subjectively because of it. And similar to my grandfather, he is a bit jaded and prefers to avoid those who know him due to the feeling of being judged based on past events. And like all three of us he often responds to situations with satire and criticisms, not in an emo way, but more of a humorous one. As long as you don't talk about the past or bring up anything that reminds him about it, he's not that much of an asshole. But he isn't vocal about his negative emotions and just hides them. So even when he cares about people, it comes off as though he doesn't.

Lol, I'm an extrovert, but don't like showing negative emotions outside of anger, at all... and will hide them long enough in most cases until I'm in a secluded area. And yes... I love me some Nietzsche. I've heard little of Kierkegaard but he seems like a cool dude.

Antoine is based more on my sibling, deceased friend, and grandfather, all of which have/had varying types of depression. I myself have seasonal depression and this was drawn right after a four hour nervous breakdown spent staring at a wall.

Although his backstory and situation in life isn't based on mine, this scene partially is.

And he does live far away, but he really doesn't love anyone nor does anyone love him. He purposefully left his previous home for personal reasons that he's not to fond of sharing that deal more with his intermediate family than anything else and is more jaded and guilt ridden of the past than anything else. But instead of confront or talk about it he would rather be alone so no one can "see" him for what he believes himself to really be. A failure and horrible person to others, especially the few people he did love.