Some fondling happened.The author definitely doesn't know what NTR is, since she was single in the first place...
Also, why did her breast size triple between then and now?![]()
Considering how common romance tropes in Japan include 'I loved her first so she's mine (somehow)!' and stuff like that, I wouldn't be surprised if this WAS considered NTR to them.
"If he won't give you the happiness you deserve, then fine: I'll do it myself"Romancing the "loser heroine/s" is a niche that I just can't not love xd
It's the part about loving someone who isn't liked back by the one they like.