I do give a shit.
- NTR [Designed to cause jealousy by having the romantic interest involved with someone other than the MC.]
According to Site Tag.
Annie is not currently a love interest, so it's not NTR. End of story end of discussion.
If she becomes a love interest in future, it will still not be NTR.
If she becomes a love interest in the future and still fucks around, now we can talk about an NTR tag according to site TAG definition. (Cheating tag would be more appropriate IMO, as the NTR genre is still something different)