I'm new at this (the whole SM thing.) My DH has custody of his 8y/o daughter. The BM is a mom when she wants to be (no CS, no job, never know if she's going to get her weekend, etc.) So my SD's teacher called me the other day and said that she has been really emotional at school lately and keeps saying she misses her mom. SD is happy and upbeat at home and never says anything to us, it only happens at school. What should I do about this?? I'm at a loss, I don't even know how to bring it up to my SD.