A very good friend of mine is going through a situation.  To prefice this,  I am currently living in the US and I was previously employed by my friend as a publicist.  I know about his situation with the girlfriend very well as I have been involved many times over the last 2 years in some of the financial decisions my friend has made,   and he has confided in me information about his relationship.  

From what I have witnessed,  I really do not know why he cares about her in the first place.  In 2018,  there was a series of incidents that she had blamed directly on him for things that were absurd.  To make a long story short,  her slanderous accusations were never accompanied by any proof and at one point we had urged him to file criminal harrassmant, defamation against her.  To our disbelief,  he didnt for the sake that she was a recovering meth addict who didnt have any support from her family or friends for that matter.   After a year and some,  my friend turned his life around and went back to his passion of music that gained some success in the UK and here in the States.   He decided to take a break and later found himself in one of the most beautiful national parks in Alberta, CANADA.  There by some miracle,  he was found by this woman again.  And thats when all started to go back downhill.    He brought out to visit him,  paid all expenses too and from,  and in that whirlwind rekindling of "love" as some may call it,  She led him to believe that she was there with him because she cared when in fact she was schemeing a way to get funds together so she and her apparent ex could schmooze in a motel the following week.  She scammed him for a  significant amount telling him that she needed it.  Without hesitation,  he gave it to her and that was last he heard from her as she "ghosted" once again.  Many instaces like this, and he keeps taking her back.  He has wasted thousands of dollars just without a thank you or some gratitude.    There is soooo much more to this story,  but this post will gooo on forever if I explain.   What I would like to know is, I know how my friend reacts when it comes to this woman.  EVerything becomes about her. and everything else takes a back seat to make her happy when clearly this woman is 1 a diabolical schizophrenic who should be in a hospital.  What advice can I give him so that he doesnt throw his life away for her as he almost did countless times before?