If any of you posted something like this, I would say:

"Dear so-and-so,
please tell T!! I would even say contact him(her) immediately.
It IS important. I really worry about you.
(S)he won't hate you. And you're not an attention seeker. You're hurting. You deserve help and support. I'd say you NEED help and support.
Please take care. We're here for you..."

But I can't say that to myself
Sorry for spamming the couch