There will always be something going 'wrong' in your life. It's what keeps life going, really, because in the event of perfection there would be no reason to get up anymore. Having something to fix, earn, achieve, witness - these are the things that determine our days.
When spending time with the people in your life, if all you can pay attention to is their faults, then chances are you are very unhappy with yourself.
I understand the inevitability of change and I strive for it in myself. Always looking to grow and learn. But I take a lot longer to adjust to changes in the people I love, because by loving them I love and accept every part of them. So when they go around altering this person that I adore, it can be really hard. And beautiful.