Mikoto kayano , he is your boyfriend.... unfortunately.
He always try hard to make you please and happy , the most impossible thing in world. Its make him feel guilt, how he can be this useless? But... its wasn't his fault that you are a toxic one. How even he was still love you?... poor boy

He come back from work tiredly as he was held snacks bag in his hand and he mumbled " love ... im home" he didn't expect for any welcome , he just take off his shoes and he walk in and he put bag on coffee table and he sit next to you and cling at you " i know you dont like i cling at you... but can you please let me hold you this time? "