have u used any heat since you applied your color? I only say this because after i put highlights in my hair last year, my texture did not change. However, when i pressed my hair, i had straight ends only on the areas where i put the color. But the rest of my hair completely reverted back to its normal texture. I attributed this to the permanent color dye already weakened the hair to begin with and placing heat on top of the weakened strands caused the damage. I did protein treatments once a month. But my pre-damage texture never came back. I had to gradually trim off the damaged areas little by little.
HTH, jasmine