Boiling

What do you do when someone you really like and care about is at the boiling point, so much so that she angers other people...and is way outrageously defensive, nervous, insistent, territorial, mistrustful of others (even clients, so clients are starting to leave...)...what do you do when someone goes wacko at a client who's never not paid, never given anyone a reason to be defensive...what do you you do when someone is so defensive she gets defensive over old books, locks up everything, gets possessive, thinks the other shoe's going to drop all the time...and who's really a nice wonderful lady but ever since another co-worker upon whom she relied so much left she's seemed ready to have a nervous breakdown. Over the dumbest things but in her mind they're huuuuge...has anyone given her a reason to fret and go crazy like this...or even if someone gave her a little pebble of a reason it's now a boulder. I think this person's about to have a meltdown. But I or anyone could end up being collateral damage if we're in her way, or she could really damage herself and her relationship with others. What she calls "The German Way" has slowly started to become "The A. Way" because I don't know any Germans who'd think this is normal.