You have my sympathy. Now that you've already used bleach on the pink lines, I think I would use my dsm to quilt over them with a wide decorative stitch. That will help to hide what happened, and also strengthen those places, because that bleach is going to weaken the fabric there over time. I remember reading about something which you can use to stop the action of the bleach, and I think it's vinegar, but not positive. Anyone know for sure?