About a week ago I was at my friends wedding. The kallah was litvish, the chosson was lubavich. Both are BTs. She has been frum for about 6 years, while he was frum for about a year. He found religion through Chabad so he adapted their minhaggim.
Before they got engaged she told him that she hates beards, and since most chabad guys have beards, she told him she specifically didn't want him to keep the beard thing. He said ok.
I told a friend of mine that story a few days after the wedding, and the friend told me the following:
I had a friend who got engaged to a chabad guy, and he told her the same thing, that he wouldn't grow a beard. Under the chupa he told her that he made a promise that he would grow a beard, and he would have to stand by it, and so he would not shave, and he will grow a beard.
I flipped out about that. I found it repulsive that someone could do something like that. I probably woulda just shaved him in the middle of the night, its not like *I* had promised not to shave the beard, he had.
So anyway, after I flipped out, the friend said to me
Well, she told me while they were dating that she couldn't have kids, and he told her "If I'm meant to have kids, I'm only meant to have them with you."
Sure enough I calmed down, said "awwww" (or similar) and decided that it was ok that she didn't just attack him with a razor one night.
Anyway, now they have kids. Can't remember how many though. But I just thought that was cute. And I hope my friend's husband didn't do that!