Yeah i agree, it's my point on this (and i must say i haven't done the last patch maybe i should have done that before responding here ^^ )Yea the NTS/Happy Routes are pretty wild with content. Regarding the love route, yea i think its based on a combination of her not giving into his advances as well as how you treat her/picking correct choices in the game. I don't think we will have any sort of revenge/humiliation again Matt as a lot of these NTR type games don't give the option (though revenge would be a nice change of pace). I think a hard line for me like you would be if Liz willingly decides to sleep with Matt (outside obvious circumstances, avoiding for spoilers).
Game wise, I think thats why the stats for "cheating" doesn't go up whenever she does things outside of sex, because its not necessarily consensual in a way. Which is why when penetration does happy, the cheating number goes up and you are kicked from the lovers route as its suppose to be the most "pure" route of the three.
But regarding revenge/humiliation, i thing it's something lacking in some NTR who allow the lover path. I mean the NTR games of the genre does humiliate the MC pretty often, so why not the other way around? Sometime it happen a bit, like i've some example where you can even kill the bad guy but it's not the same as humiliation.
So yeah,i wont expect ntr mobile to allow so sort of humiliation of matt especialy because it's unknown on the genre to my knowledge at least ) but i admit that i would like it very much. It's a refreshing idea at least.