Yep, I've heard/seen/experienced this too.
It has been seen with several celebs, a bit like I'm going to wash that man right out of my hair,except it is cut that man out.I have had big hair changes following marriage break up.I really felt the need to put that mistake behind me and re emerge as a new woman.
My ex husband wa a hairdresser and he used to say if a woman came in for a radical hair change, it was nearly always due to a relationship break up.
Time will tell I guess.