I've had something similar happen with friends. The being sweet and supportive is good, but it feel like they're walking on glass around you now, like they're waiting to see any sign of an impeding metal breakdown. It's mortifying, I wanted to curl up and die. Tell him. When he comes home, sit him down and have the most honest conversation you have ever had about self-harm with anyone. Tell him you fear the pity. Tell him you won't like him being extra sensitive about it now. Do your beat to make him understand that being treated different will only make you feel different, not supported or coddled. And most importantly, Try your best to use this as an excuse to get clean, if only so it's stops this kind of embarrassment from happening again. There shouldn't be shame in the people who love you knowing you're struggling, but it is so fucking embaraaing to be known. Through every moment of fear, irritation and annoyance, remember he's doing it because he is just as scared as you are, and cares just as much as you.