I really love this kind of plot u kno. Like, when u take someone for granted and then realize it was the biggest mistake u've ever done..
There's part of me that wish Toudou (seme) DID move on and find happiness; leaving Kirishima (uke) behind to regret each 'hurtful' words he has said.. 'Cause (usually) in RL we won't get the second chance after taking someone for granted(︶︿︶)
But well this is a manga and a fiction, and I don't hate this happy-together-type of ending either. So all is well I guess..
Renai Nante Yurushimasen!