how could i have known

How could I have known how to handle the situation when I had no idea what was happening.  I always treated Wael like a "normal" person when in fact, nothing about how you speak or deal with a borderline narcissist is normal.  They are a child trapped in an adult's body.  They only see the present - never the future or past - and they believe what they feel is always going to be there.  They think everyone thinks and feels the same was as them.  So many things I never knew.  I loved that man.  I loved that man.  I loved that man.  I never had any idea what I was dealing with.