<human>: Can you give me the gist of the text in a nutshell?

My friend [25M] just broke up with his girlfriend [24F].  He is shaken up over it but will be OK.  

She is not taking it so well.   Over the last month as this breakup has played out, she has shut herself in her house and cut herself off from her (already very small) network of friends.  Each day she drinks vodka by herself until she blacks out.  She repeatedly has said that she wants to be completely numb.  And, she admitted to my friend before they broke up that she has been cutting herself.  (He saw the marks and asked about them.)  Even before the breakup she was suffering from depression, and she is on an SSRI antidepressant (I forget which one).  It is her first serious relationship and hence her first serious breakup.

These seem to me like warning signs that should not be ignored.  Am I correct about that?  If so, what is the best thing to do?  My friend needs to keep his distance because... they're breaking up and he needs to do his own thing for a while.  I am not close enough with her to call her up or anything like that.  In fact, I think that might seriously weird her out.

Should I encourage him to contact her friends and get them to check on her?  I really don't think it's a good idea for my friend to deal with her directly, for the sake of *his* mental health. Is there anything else that either of us can do?
<bot>: My friend [25M] just broke up with his girlfriend [24F]. I am worried that she may hurt herself.  What to do?