as much as NTR in general would work for both netori and netorare, the game focus on the MC and his childhood friend, so cheating, AND the site uses this definition: "NTR is when the feeling of jealously is being inflicted on the MC", whereas they (the mods) decided to slap netori in the cheating tag together, so no, this thread doesn't require the NTR tag, just because the "boyfriend" is being NTR'dFor the god sake. I put both tags, cheating and NTR tags.
That girl is cheating on her boyfriend, so probably her boyfriend is/will suffering a loss, so that is fucking NTR, someone is getting their mentally head fucked by someone else.
And this god here explained well.