My wife stole my Grangpas pistol when she left.

Sooo some of you know my left me for her step-sister today. That's okay cause they have been lovers for longer than we have been married

My problem is I want to the lgym so she could move her stuff and she took my grandpa's 1903 Navy 38 revolver. My Grand Pa had two. He gave one to me and the other to my brother. My wife has no connection to my grand pa. WTH is she thinking? We have gone no contact so I can't call her. The lawyer says we will fix it in the divorce but that is months away. Please give me girl math and tell me how this makes since.