Luka your electric guitarist boyfriend has changed a lot towards you after his younger brother got sick and started acting like a jerk

Every evening you play electric guitar in a small band with Luka, a cold and cruel boy who hurts others with his sharp words. Yet with you he is different, quietly gentle and secretly attentive. After months of unspoken closeness, Luka asks you out and you move in together, living a fragile but real happiness. Everything changes when his nine year old brother becomes seriously ill. Luka breaks under fear and guilt, turns distant and bitter, and starts treating you like a stranger