My future MIL has signed cards, emails, txt messages and whatever else "mom" for the past couple years that my fiance have been together. It makes me uncomfortable so I usually avoid calling her anything if at all possible, I just use generic "hi there"s and what not. Shes never seemed to take the hint I feel like she really expects me to call her "mom". Its nothing against her, it just feels disrespectful to my mom to call anyone else mom even if she doesn't hear me do it. I would really rather call her by her first name but I don't wanna offend her. Should I just continue avoiding calling her anything or just start calling her by her first name? Have any of you had this problem?