While i do think that Selena and her sister Samara would be part of the harem if i spare them, it's so satisfying to just kill Samara and be done with the traitor.
Especially after Selena said to MC:
"My boss, Taron, [...] He said to lure Eliza away from you. That he'd just use her to trap you!
He promised he wouldn't harm her!"
BUT while visiting Eliza in jail she said to her:
"It won't change anything. You'll die here, and so will MC."
Even when MC is holding her sister's neck in his hands she still lies like the piece of shit she is.
Sorry
BuuPlays but I really can't see how Selena could be a LI after all this, I think her visit to Eliza in her cell and what she harshly said to her is a big invitation to kill her sister for most players. And that's exactly what I did, no remorse, so I think you shouldn't waste your time rendering a path for this cunt.