My Girlfriend Cheated On Me And Now My Flirty Underclassman Wont Leave Me Alone Light Novel Vol 3

NEVER EVER GETTING BACK TOGETHER?In the days leading up to Christmas, Hasegawa Yuuta's life was thrown into disarray when he discovered his girlfriend was cheating on him. He's since tried to move on and tried to focus on enjoying the new semester with his flirty underclassman, Shinohara Mayu, and his longtime friend, Mino Ayaka. But after his ex claimed that she actually didn't cheat on him, everything's been thrown into question. Does Yuuta dare consider that it may have all been one big misunderstanding?