yes for me - I tell everything to my hubby. I mean EVERYTHING. I do not share these info with anyone else. So for me hubby is best friend…
However, :halo:, I know I am not his best friend 
he has his own set of people that he shares “all” with.
So I guess as a “couple” we are not each others best friend… it’s a one sided best friend relationship
You just made me depressed ~ I hope to get over it so I don’t run to my one sided “best frrrand” now ~~~~~~~~~~