HP, have been following your sitch and certainly can relate....
Maybe if you can take a step away from the situation and think about what may be best for your S in this specific situation it would be helpful?
Seems like maybe he was feeling a great deal of stress in the situation with the school project which I am sure is not what you wanted.
Is there anything you can do to help him and still maintain your core values and your approach with your W?
Just a thought, no indictment...... It is certainly tough and we are all doing the best we know how to in very trying times.
Thoughts and prayers are with you. Stay strong!
Me-48,W-51 M-22,T-24 S- 18,16,9 Feb-Jul '11 Away from Home, after initial B date Aug-Dec '11 Back at Home on couch Dec '11-now Same bedroom, room mates only Dec '14 W files initial D paperwork