1,2,3 OCD (Joshler)
It's hard to explain. Sometimes it's multiples of three. If you touch with one hand you have to touch with the other. Don't step on the cracks in the pavement. Fit things together like your life is Tetris. Measure the inches around your stomach and document them. Right foot first. Easy. Simple. Difficult. Horrible. Nightmare.
Tyler doesn't know how to cope with this other than to follow his compulsions, but at least he has Josh.
"Morning Tyler, you hungry?"
Warnings - self-hatred, self-harm, implied EDNOS etc.
This is basically just me forcing my everyday struggles onto almost-fictional characters so sorry if you think it's inaccurate.