I kinda understand what you'r saying...But... you know you control both characters, no? Its in your decisions how things happen. You dont like ntr? (me neither) then Lena only have sex with Ian.
You should give the game a try

. It my be slow for your taste for what I read.. but you would clear some things. I mean, instead of reading comments and the walkthrough, just play the game and maybe you like it?
And if you dont, then you can say "I dont like this fucking bullshit!" and thats ok, its your opinion of the game, but now.. I dont know if your having a bad day or being... overbearing? (is that the word?), but hey, this is just my opinion.