Ohhh... that's why. I disabled NTR, so she really did disappear (as she can't fuck Andras with NTR disabled)
No. The gentleman who answered you wasn't being very helpful. There is still no NTR canonically if she moves away from you. Even if NTR is on- you still have to make choices while playing as her to enable that content. Also regardless of NTR or not you cannot visit her room. It was just a boneheaded decision by the devs to not let you visit her if you saved Hel.
Hurr durr, Lets make this a game about a couple struggling in their romance whilst simultaneously struggling vs corruption. Okay, lets see- what would make this interesting - you cannot have the two main characters meet up outside of scripted events if you try to insulate one of your friends from rape.... for the drama????
One of the devs was talking about reworking the whole Hel narrative. Expect it to be much better and more nuanced in the future.