Welcome to the club.
The problem you have is a common one and stems from a design flaw in the trunk pivot. The bolt is a shoulder bolt and it seizes to the hinge, then the next time you open the trunk you shear off the pivot point on the body.
The permanent fix is to contact James Adams of JWest engineering. Get one of his trunk hinge kits and install it. You will never have the problem again.
You will need to make a tool to remove the torsion bars on the rear trunk. You can do this by taking a 12" cresent and cutting a notch out of the loop on the handle end so that it is now C shaped. Then hook that over the torsion bars to release them.