Please hurry? I don't know what to do!!!?

Ok, PLEASE answer?! My fiance, Patrick, is an independent singer/guitarist and he's playing a huge local charity concert right NOW (I'm backstage on my laptop...) I'm his vocal coach... Well, he's been through a lot lately... His best friend Andy tried to hang himself a couple weeks ago, and he's in the hospital... a couple days ago, he tried killing himself AGAIN by overdosing on his depression medication... he's ok, but Patrick's been a wreck... Patrick's music that he writes is very deep... it's about personal experiences, like this (there is one song about this situation)... a lot of it is emotional, but not "emo." All week in the studio, he hasn't been able to get through these particular songs without falling apart... him and Andy are 26 and have been friends since they were 10... I was worried that he would meltdown onstage tonight, and he just DID... I heard him out there apologizing to the audience, saying that he's going through a rough patch, and said he'd be back in a few minutes... I tried to console him and told him that no one would mind that he messed up... that he's playing for charity and they love him for doing that in the first place... He won't listen... he's a wreck backstage right now, basically freaking out, beating himself up for messing up like that... I tried to calm him down, but he locked himself in the bathroom and he's probably in there trying to calm himself down... It's killing me seeing him like this... I don't know what to do!!!!! Please answer!!! He has to go back on soon! What do I do to help him?! He's a hot mess back here!?