DP was in a relationship with a woman from when her child was a few months old until he was 9. They got on well and DP was his father figure, he came here a few times then his mum stopped it and told SS (I'll be referring to him as that for the purpose of this thread) that DP didn't want to see him, I think he was about 12. He then started living with a family member and he started visiting once a month. Until about 18 months ago, he messaged DP and told him he wanted to live with him, DP didn't do anything as he didn't think he'd be allowed custody of him as they aren't related and he lives about 2 hours away so he wouldn't have known anyone around here and it’d mean a new school etc.
He came here about an hour ago and said he wants to speak to DP, said he's in foster care which he hates so he's come here without them knowing. I told him social services/his foster carers need to know where he is (he said they think he's with his friends) and I was going to call social services, but he got upset and said he isn't going back so he'll run away again etc. So I haven't called them yet but I'm not sure the right thing to do.
DP won't be back until 8:30 and by then his foster carers will be wondering where he is etc but if I do now he's potentially going to run away again (as he's said he will) and go somewhere unsafe, he doesn't know anyone else in this area.
Just to add, he's 15.
WWYD?