I am dating a young lady with no biological children... however she considers her ex husbands son her child. He has two other children(daughters) that she doesn't reach for like she does the son. The boy is 19 or 20 and she has been in his life for about 9 years but they were only married for 2 or 3 years. Her family seems to be a big fan of her ex husband. They have been divorced for about 2 years now and she still speaks with her but she says that they only talk about the boy, but I find that kind of hard to believe. I have no children and I am really not interested in having a relationship with her ex husbands son. Should I be concerned that she still has some feelings for the ex?