Quilt drama

I quilted and bound the “great-grandmother” quilt ( I have now determined that it was pieced by his great-grandmother and not grandmother) and put it in the washer to soak in some Oxyclean.  I hand agitated, let it spin out, threw in Wisk and hand agitated, spin, rinse (hand agitated again) and the final spin.  I pulled out the quilt and only one block plus part of another is coming apart. It is the same fabric in both. 

  I am now letting it dry and when I come home tonight I will figure out how to repair.
I used the suggestion to do an overall quilting pattern and I think it worked worked out well.  I made an attempt to quilt over the outside points of blocks to help secure them.  I also bound in black.  It actually looks surprisingly good all things considered.  Now – to just get it dry, repaired and in the mail!