It's ok to change....maybe you have changed for the better?
Young girls are conditioned to make others feel good about themself, and sometimes we are conditioned to be doormats, if you move on from being a doormat then you have changed to your benefit, but to the usey friends detriment.
Nobody needs fake friends. Nobody needs friends that can't adjust to change or accept that change is part of life.
My take on it is all friends are changing....at all given times... so you may have changed and they may also be becoming more judgey in their own way.
Ultimately if they are not healthy, kind, supporting, positive and fun, genuine friends then maybe it is no harm to readjust to the curent you.
I thnk people are always justifying their own choices and weighing them up against other people.....justifying how good they are against other people. Just maybe operate in neutral with them for a while, avoid any further falling out, just neutral and see how it all pans out.
Friendship groups tend to be fractious anyway, and this becomes obvious when there are external pressures, like children, midlife weight issues, finances, lifestyle discrepensies, relationship comparing and contrasting. We can only be true to ourselves and be happy with our choices, ignore the negativity.