Hi Maggie sorry for your diagnosis. I know how much of a shock it is to get the news your have breast cancer. Just take it one day at a time.
I did worry about losing my long naturally red hair, but I cut it to shoulder length beforehand so I could get used to it, then cut it short and finally shaved it off. Surprisingly my husband really loved my bald head.
There are places you can donate long hair so it can be turned into wigs for children with hair loss. I think the Variety Club accepts long hair. Someone like to do this as it makes them feel better to donate it rather than just losing it to treatment.
I bought a wig but never wore it. I also used scarves, but in the end I just rocked the bald look. I really got into it and wore a lot of makeup with my bald head. It made me feel badass.
I was surprised at how quickly it has grown back after treatment finished.
There are wonderful wigs and scarves around and it won't be gone forever. You can always get your boyfriend to shave his too.
Take care and all the best, Nadine.