So back story
Son and girlfriend 18&17
They didn't get on very well ,he would visit her and get me to text asking him to come home as he was fed up with being there , he would lie about seeing mates as she doesn't like it , she's very controlling and doesn't like him drinking , talking to anyone female etc
She is always running him down , doesn't want him following career ambitions .
Father's Day she broke up with him at 7pm then went off with another boy by Monday evening she was back with my son ,( he asked her )
He then told me Wednesday he was moving in with her ( she lives on a farm in a caravan)
I am devastated and think it's a stupid move obviously he's 18 and I can't stop him , but it's torn a massive whole in our lives ,
We are already going through a lot as a family
Stupidly I told him what I thought and said to him if he hadn't told everyone what she was saying / doing previous to this we may have had a different view .
Apparently he's the happiest he's ever been with her ,
I don't know how to move this forward my son in law won't talk to son because he's frustrated by it all ( previously he was close with him )
We have a birthday coming up soon and I am at a loss with what to do ,