What should they call me?
My son is dating (living with) a woman who has 3 kids from a previous marriage. They have been together for 7 years, and the kids are 10, 12, & 13 y.o. I just received the first grandmother's day card from them, so I guess that they're sending a hint. What should I have them call me? A few years ago when my son's gf asked me what they should call me I just told her Mrs. D. (I had no idea where the relationship was going), and that's what they call me now. It just seems a little formal for them to call me that now, or maybe not?
Any ideas would be appreciated. Thanks!
PS - I don't know whether or not they're getting married, but it seems that they're going to be together for a while.