Stepson is avoiding all interaction.
I am concerned about my 15 year old soon-to-be stepson. In the last year, his dad started dating me and I moved in to my fiancée's home with my two daughters (ages 13 and 15). We live next door to his ex-wife and son. His dad thinks he is "fine". I disagree. The boy actively avoids any contact with me and my girls to the point that he has only been in our home four times (just to come looking for his dad). If we invite him to go somewhere with us, he always declines. If my girls try and talk to him, he refuses to engage in conversation. He stated that he would never want to go anywhere, if my girls and I were going. My take on it is that if he doesn't have to interact or see us, we don't exist in his world. Even when his dad tries to engage him, just the two of him, he refuses most times. For example, his dad goes over every night to his house to say goodnight to him and he will actually ask his dad "What do you want?" and tell him to leave. I think he is angry. Very angry but doesn't know how to deal with it.
Neither my fiancée or his ex has sat down and really talked to him about what is going on. He knows we are getting married but they haven't even told him that it is going to be as soon as the divorce is final. They haven't asked him about how he is feeling or what is going on in his head. My fiancée actually told me that he felt that he no longer had to parent his son because he was "grown up". Grown up at 15?
We can't force the child into relationships he doesn't want but I am so very concerned that no one is paying attention to what I see is warning signs that he is troubled. Is there anything I can do?