Sae never was deeply affected by matches score, he is a person that works hard and gets better instead of feeling down. He isn't easy to rile up, he doesn't even show much emotions in the first place. So why did that suddenly change?
He's pent up, having nerves and attitude towards everyone and getting all annoyed, and you were also a victim to that, you had a few arguments thanks to his mood but..
That's definitely not my fault. That's what he believes, and he chose to ignore you.
It was late and he finally got back home after training, they were working extra lately because of their latest match, they needed to work on their weaknesses, and him being driven by the need to improve he started ignoring everything and training instead. He didn't call for you as he removes his jacket in the dark apartment, waiting for you to do it instead.