Hugs. 1st. Their loss - 2nd. You don’t want a person like that in your life. 3rd. It fucking sucks. You deserve better. Now they’ve opened the door so someone better can enter. Don’t forget to kick their ass on the way out.
Those are the "friends" you don't need anyway. Don't look at it as being dropped. Look at it as their inability to keep up with your pace of excellence