Then I think if I was in your position I would keep it in a bun and slick the edges back so it matches while doing frequent protein and deep conditioning treatments. I would try not to straighten it if possible, at one point a couple years ago my hair was so fried from a flat iron that it started breaking off in little pieces all the way up the shaft. Now that I've been taking care of my curly hair I can straighten occasionally with little to no harm.