My friend has a DS (and it really is a friend- i have a DH!) is struggling as her DS behaves really badly to her but not anyone else. She works 4 days a week and Ds is in nursery. She finished breastfeeding just before he turned 1. She is very strict with him and has set out clear boundaries. She is happyily married and DH is fully involved in childcare but DS does not play him up. Any ideas what it might be and how she might rectify it? She is at her wits end and considering working the extra day as she cant stand this for much longer...