It sounds a lot like Youko-san is lesbian or bi and rejected Aki to be seen as "normal". Not sure if she has regretted the choice to reject Aki, but she does not appear to be happy with her current life despite the face she puts on in public.
Trying to make me feel sympathy towards the least likeable character from the main cast? Is not working mangaka-san.
Liar girl is annoying but at least is not a pushy rapist like the prez.