My stepson is 18 and lives with us full time and he has done for years. I have a close relationship with him and he often comes to me when he doesn't feel he can talk to DH.
Last year he was found to have weed on him at college. He was given a warning that if it happened again he would be kicked out. We didn't know anything about it but he said he was just doing it to fit in with his friends and he promised to stop. In the summer we found out he’d been taking painkillers without needing them. DH didn't react very well and shouted at him, calling him stupid etc. I spoke to him and he said he'd been taking them on and off for a few months but he didn't know why.
We tried to get him to go to the GP but he refused and said he was fine and agreed to stop taking them. At the start of January he came to me with a box with a few missing and asked me to get rid of them because he'd taken a few (3 or 4) and didn't want to take anymore. I tried to speak to him but all he said was taking them helps him concentrate on things. He still refused to go to the GP but I promised not to tell DH because stepson didn't want DH to turn it into a big deal.
I had a message from his girlfriend this afternoon and she told me she was worried about him as he stayed at her house last night and she went in his bag for something and found 2 boxes (one open with some missing and a new one) of painkillers and when she asked him if he was ok he shouted at her and accused her of going through his things. He then was acting off with her.
I've not spoken to him yet but I plan to tomorrow. But I'm unsure about whether I should tell DH first. I am worried about how he will react and about how I agreed with SS not to tell him but it was before I knew about this.
WIBU to break SS’s trust and tell him?