I started using it after my initial run with this game where I didn't like the outcome. It was my pre-Bella discovery and I basically took her for the bitch she started out to be and I was on Rachel's route, not realizing, at the end, Ana & Alina joined her on Belugio. I wasn't having any of it.
So I tried Bella, but this time, did the best I could, but still, somewhere, I screwed up. Next Bella run, walkthrough, found the solo LOVE ending and all that I was looking for and have been "with Bella" ever since.
Yeah walkthroughs take fun out of games I know, but I was so determined not to bork anything up again I wanted to see what her LOVE ending was. Now, a game like BaD or AL (even CoBD) I went to a walkthrough right away because there's so much happening in those games. I don't regret it. I'd rather have that than have any aggravation over screwing something up because of one choice.