Zen part of the problem is we have not been taught how to handle it effectively. It all goes into the bucket of " you are not acceptable, you are not worthy, you don't matter, I don't like you."

If you break it down and are able to categorize the type of rejection it is, it becomes easier to handle.
It all hurts but

1)...it's not a big deal. It's not true and once that person knows me better they'll know I'm not that way.
2) .. but it's not a big deal. It's not true, and that person is very negative and nothing I do or say will change their mind.

3)...it is true, and it is a flaw I have, but I'm working to change that the best I can, and on balance I have more strengths than weaknesses.

BITS
Me-51, WAS-52
Kids 2
M-26yrs, H.left 2009, 2 more Bomb drops, Reconnection spring 2013
Change is inevitable, personal growth is a choice.
Love is a action and choice you make, every day.