I Hate Facebook

I hate Facebook...My wacko "daughter in law"( I put in quotations because my son has been with this girl for three years and they are not married, Thank God, posts on Facebook at 11:25pm some rambling about she is sooooo sad and mad and empowered and confused all at the same time.  She has a bad drinking problem, in which we have confronted a couple of times to no avail, she blames everyone else, so we just thought it was drunk rambling.
My son is bi polar and is doing very well on his medications and she has an autistic child that he has been a great father to.  The mother has her own issues.  Anxiety, ADD, abuses alcohol. 
They are in CO.  We are planning a trip out to see them in October.  I am taking my 87 year old mother to see my son and the baby. 
He calls last night and says that they have broken up!!  That he has moved into a room, that she is realizing that she might be lesbian.  That they have just been friends for the last 3 years. 
Ya can't make this shit up!!!!!  It is for the better that he get away from her.  I am just sad because the baby is probably the only grandson that I will ever have.  She texted me pictures of the baby later and said things will never change that I will always be his MiMi.  But we know better!! 
Had wine with dinner.....