I feel so bad for you. By the way the pictures show the place that has come apart looks like it is the seams. Did you sew with a basting stitch by error? I know this as I have done this to a quilt that I was working on. I would contact the place you purchased your new fabric from and make them aware of the quality of the fabric. You might feel better by just making a new baby quilt. The quilt you made is so pretty-can you replace the fabrics that you used with different fabrics with better quality? Good luck to you