Idk, it sounds like your wife is trying to get you to move out to protect herself from losing any money in the divorce. Timing of this new fear development seems to be connected with your moving forward with divorcé which she probably got served.

How horrible that your wife’s daughter was physically and sexually abused by her own father

I hope your wife’s ex is in jail. Idk how one gets over their husband doing that to their own child. How can one trust any man after experiencing something like that?