So sorry that happened.
There have been several good suggestions here that I totally agree with. Sew them all back together, and then find a good way to display them in your quilt.
Sashing sounds great. Use white or black or some neutral color. This would separate the colors.
Another way is to make solid blocks the same size as the 9-patch blocks and alternate them. The solid blocks could be many different colors or all one neutral color. I think this would be lovely.
Don't be floored by this. You can do it. Good luck!