I finally got my hair trimmed and style after it growing out it became so unmanageable I always tied it up. Yesterday no one noticed it looked different. I had it down with layers and it was straight. The only ones who noticed and acknowleged were the ones who knew I was gonna do it.
No one else did. Not even the people who usually do notice things. Not that I was fishing for compliments but it saddens me a little.
I feel you, but it happens. Don't take it to heart. Maybe since you always tied it up when it was unmanageable they overlooked the difference between your old hairstyle and your new one because they're not used to seeing your hair down anymore. I'd be a little disappointed if my best friend didn't notice, but probably not offended.
I understand what you are saying and why it would hurt. The change meant something to you and you would want the people in your life to notice that about you because it means they are paying attention to you, noticing you ( not in a vain self attention seeking way) and that you are loved. When people notice , it just makes you feel special and makes you think, " Yay! I am cared for and important to them!" ... Small things play a lot bigger roll in peoples lives than they realize or even want them to! :)
I know it can hurt to a degree but you can't let it get to you. They didn't mean any harm by it and I'm sure they care. Plus you said that you always wear it up and maybe they just thought it was your natural hair when you wore it down. I'm sure they would have noticed if you normally wore it down ;)