does dating Lena blockes any routes?Do i lose anything dating her?
Yes, many options get blocked. There is a bit of leaway if you merely have an open relationship with her and some girls are content just fucking you without commiting. You can also commit to some girls before Lena.
Holly: Currently not possible to date both, Lena is extremely sensitive about Ian purchasing her.
Cindy: Affair is possible, but demanding a relationship doesn't work if Ian already commits to Lena.
Alison: She ends the relationship if Ian and Lena are too close.
Cherry: She nopes the fuck out if Ian is with her past rival.
Emma: Casually fucking her works, but she backs down if Ian and Lena are serious in chapter 10.
Minerva: Works. I imagine Robert can potentially tell Lena of the affair after the events of chapter 10.