Do I have validation for feeling threatened/jealous of my fiance's ex wife PLEASE HELP?

My husband is Army and we are currently stationed in Korea. The soldiers whose family isn't here/the single soldiers get wild over here. The ONLY thing to do is drink and the bases are surrounded by bars filled with "juicy girls" (locals who dress extremely slutty and flirt with soldiers to get free drinks. They try to be their girlfriends so they can marry the soldiers and divorce them when they are considered US citizens). I can definitely see how their marriage fell apart. I think its really odd how he doesn't hold his ex wife accountable for all the stuff you posted. I would pissed if I were in your shoes.