Hii sorry for taking a while to answer, was busy with life
Leshi does hold feelings for Nyxia, and Nyxia does the same for him. It's not exaaactly romantic for either side, they're in a situationship. But what Leshi was doing there *was* manipulation: he was reminding Nyxia of all the time they spent together so Nyxia would either 1. drop you on the stop or 2. get mad at Leshi for doing exactly this, keep you (but drugged up) and, when you died, he (Nyxia) would realize that he (Leshi) was right all along, and go back to him. This is what happens in the bad ending. Nyxia keeps drugging you up and you die. In the good ending, Nyxia breaks free from this cycle Leshi had him in, and actually treats you like a partner, and you two live happily ever after. I hope this clears things up :D