Yep, that sounds like dark night. It sucks, hun?

I've failed on many accounts during the dark night, I guess if I have any suggestion is this:
if...
someone tells you something and you find yourself thinking this person is bad or stupid, or this friend isn't being a "real friend",
or...
you get anything along the lines of "felt negativity" which you can't quite justify,
then...
1. doubt the meaning implied by the feelings; don't let it govern your life; take refuge in solid common sense and good reasoning when making decisions (even things as innocuous as "I need to talk to my friend about what he said" can be missing the point that what he said wasn't so bad, or it was not directed at you, or didn't mean what you made it to mean)
2. investigate the feeling; really look it in the eye, see how it feels with great attention to the minor and major shifts, mental speeches, etc.
3. Be your own best friend, make a resolution of optimism: "this is just dark night, it will pass"
4. In one expression, if you've read MCTB, make sure you don't let the dark night "bleed through" into your life.
I have done some really stupid things due to not following that advice :-)
Take care,
Bruno