When I was 15 [and not done anything wrong [apart from my bedroom could have been tidier] - my mother said 'I hope someone makes your life as unhappy as you've made mine'.
I was illegitimate [conceived with a man who she didn't know at the time was married] so she needn't have kept me but things were fine, affection, no problems - until she married when I was 10 [I disliked him a lot] and had his children. I'm sure she had post natal depression for a long while.
I was always the black sheep, left out, felt in the way, nagged at, constant criticism etc. Unfortunately I chose to be a bit of a rebel after that [nothing too awful] - to give her something to worry about! Childish I know.
I married when I was 18, had 2 boys who are my pride and joy by the time I was 24 - and settled down [sort of]. I never forgot, never had much confidence, try to keep out of people's way, not to offend etc.
But I never gave up on my mother, I understood what she had been through/was going through. I wouldn't let her go. On her death bed when I was 59 she told me she loved me, and I said the same. Genuinely. I'm 77 now, still bear scars I'm afraid [much more to this story].
So that's how rejection felt/feels to me.