Guess i will need to replay the game again since i already got drugged Jessica because of Ian's choices ingame. Still very weird that a main character from the previous game (who can be romanced) got her destiny based into the random choice of partners from someone she doesn't even know.
I think it sorta makes sense being tied to Lena. If you choose to be bad GGGB then you'll probably be bad in Our Red String kinda if like the sluttiest timeline of events.
yes, i think it's obvious that Eva has some plans with good and bad Jess, and since she has implemented both, you have to find a way to determine which Jess gets which playthrough.
like
Pizzapockets said, it makes a lot of sense to attach that to your choice of Lena, because of two reasons i can think of:
1. when you want to have Jess play a role in future scenes, you have to find a way that those scenes don't feel constructed, as well as to don't make you feel the scene misses if you have a different Jess. the best way to do that is to couple that scene with a route you're taking. for example, you're in a club with Jess and are about to take drugs, of course Jess follows you to do the same, since both of you are "bad". now you're actually on the good path, where is Jess then, is she still taking drugs? of course not, since she is also "good" and you're actually at the tattoo parlour with Holly.
that's why i think it was first on Ian's part, since Eva thought it would be good to make it only possible to score with Jess if Ian is a playboy.
2. with how big the game already is and tendency says it gets only bigger, it's sensible to establish earlier which Jess you get, to get locked in that certain path and not have any hiccups later in development. meaning that for later scenes she only has to look after which Jess you have, to determine which scenes you get and not be surprised that you got a "good" Jess scene in your "bad" Jess playthough, or the other way around. for example, you convinced Ivy to rethink her life, this makes her help Jess, so you get "good" Jess. however your Lena is still a total slut and therefore meets "bad" Jess in a club, because of an oversight of Eva, or you're using the cheatmode and have too high lust points. sure that's mostly bugs, but taking care of them is additional time in the creation of chapters