Hi - Im a first time mumsnet person. Im very concerned/confused about my teenage son. He is supposed to be revising for A levels but is constantly with his GF. She is very cleaver and is 19 and at uni. It is very strange as they cook and eat together every evening in the family house. I find this very divisive as we have always eaten as family. We have two other children who are older and they think it is odd. She is very domineering and often speaks to him in a way I do not like. He has said to an aunt that is batting above his weight!! which is obviously ridiculous to us but not to him . Sounds quite petty in comparison to some problems but he is changing and I'm not sure how to deal with it - it has made me very upset as I feel that I have lost him. Is this more about me then him???