If you're important. People will make time for you if you matter to them. Maybe not at the moment you want it, but they will make that effort. If they don't make that effort anymore, you know where you stand.
Sure you don't have time , sure you must be really important, I understand- but they don't . Stay away if you want to make excuses , they don't need to live confused thinking it must be soothing they did - it's not them it's you!
Just remember that the people you call your "friends" are the people you hated and talked shit on a few months back. Just know that you lost true friends who had your back and gained friends who talk shit on you when you're not there.