I see.
In my eyes I don't particularly see the three guys hitting on Theo, the bar manager forcing himself onto Vera, or Theo turning down the dinner date with the other guy as NTR... yes, they are certainly clichés and can see why someone would view them as turn-offs but not as full blown, story-ruining moments.
As for the other two, Elisa's/MC's relationship and MC seeing all those other girls. I guess I've never viewed these kind of things (I.E. "Harem building") as NTR. Considering I absolutely despise NTR(mainly Netorare, though also Netori at times) I'm not sure if this is my mind pulling a veil over it and saying "Hey, if everyone ends up happy and ok with it, what's the problem?" or I just don't hate "happy" NTR (if such a thing even exists)
to each there own, I guess¯\_(ツ)_/¯
Regardless, thanks for the the reply. Always interesting to view things in a different light