Well if I asked the gender of a child and was told we're not telling people, I wouldn't immediately think "I'm NEVER speaking to you again", sure some people would find it weird but not every single person she meets, surely?
so that would mean the DM are exaggerating her friendlessness or she perhaps had more to say on the subject than simply not saying the childs gender. New mums are sensitive to criticism. I am a bit of a lentil weaver but I have never been unable to convince a non lentiler to come round to mine for a coffee and biscuit.