Nah if its a case its seems more like a coding error/oversight as alexa was hyper eager for him to stay and cuddle and both of them really enjoyed it when the mc left at the next morning. And alexa seemed sad he had to leaveI would guess it's because they are looking for a fuckbuddy and not a boyfriend, I would imagine after while they'll back off if you get too clingy.
Both, Alexa and Kris actually crave the tenderness and non-sex intimacy as they are starved due to their familys