Where did you see this? The only name mentioned in those two images is "Nakajima", which is then used consistently for the school girl protagonist in the actual chapter. No one else was named there.
It's in the other Pixiv sets yet to be typeset. In these, the boy is referred to as "Kenta" whereas in the comic version, he's named "Takuya" (or possibly Takaya, the names annoyingly don't have furigana).
For realsies? The boy was originally KENTA!? And his name was changed for the comic version?
Well, slap cat ears on my head and call me neko neko wai, this story was inspired by Sexy Losers! Nene was right all along!!
You see, in Sexy Losers, Kenta, who is a high school boy, has a cute girl classmate he likes, and she seems to like him too... until he introduces her to his mom, and the two women start a lesbian affair.
There's no way in hell this is a coincidence: Sexy Losers is too well-known, both in Asia and in the West, for this to be fortuity. The name Kenta is a transparent reference-cum-homage to SL. Too bad it was changed for the comic... but I guess it was unavoidable for obvious reasons.