What to do?

Hi all,

I have straight, fine hair that's naturally dark blonde. Up until last week I had dark strawberry blondish lowlights and light blonde highlights. My stylist used a golden/copper toned dark blonde all over, which gave me a nice auburn because my hair pulls all the red out of every color ever. I love it. But. After only a week the highlights are starting to peek through and the red has faded from those sections. :( What should I do? I was thinking about a red semi-perm. color in a couple of weeks, but I just don't know. Thanks for any help you can give!