I had a GF who had really long waist length hair. We were going stable, everything was fine. I would not tolerate anybody touching her BUT she used to mesmerize every male around with her shiny long hair. Her college friends used to stay with over the weekends. I would notice that some or the other guy would come up with a reason (in a funny way) to touch her hair, or loosen her bun, pull her braid or do something to get their hands on her hair. I used to share my heart with her by expressing that I don't like it. She agreed. But then once time she went on a vacation with her same guy friends. Most of them were single in that group. After returning from vacation I noticed she had changed. We broke up. A year later, I used to see her selfies with her new bf:

- digging his face in her hair from her back

- her bf blow drying her wet hair in the balcony

- her partially unrolled bun on her bum

and many such photos.