My MC said, "Here's how marriage works; if one spouse doesn't like the other spouse's friend, then the friend has to go." I think that the perfect summation of the marital relationship with regard to people outside of the marriage.
Wise counselor you have, my friend.
There are moments in this life when you are so confident in the rightness of your actions, that not even for a second do you consider the option that you might be wrong.
