Tsktsk's Things

I read it forever ago so my memory is awful but it was most likely a love triangle of sorts. The main character knew he was gay, I think, and he might have an unrequited crush. The scene I remember the most is when the MC and what I think was the secondary lead went into a cave and kissed. Then the secondary lead had a gay panic about going any further and ran away. The cave was behind a store they live in a small town. They are also kind of young, maybe middle school. It was in black and white and short. A few other things I might or might bot be remembering correctly; the mc has bandages on his arm at some point because he hurts his arm, the mc and ml have black hair while the secondary has blonde hair. He ends up with the secondary guy? Maybe some gender ambiguity with the mc???? My brain hurts trying to remember more. Please someone help so this doesn’t pester me anymore.