Hi , Have you hear about regret. Its a inner feelings
yes i have
Its more conscious and emotional feelings. When you are identify that in you
you are right but can you tell me more about it
ok, Regret has been defined by psychologists in 1990's as a negative emotion
okey what are the things poeple can really regret of
differ in regard to feedback about the outcome, comparing the difference between outcomes for the chosen vs. unchosen action; In regret, full feedback occurs and with disappointment partial feedback. They also differ in regard to agency (self in regret versus external in disappointment).
Models.
There are conceptual models of regret in regret (decision theory) mostly in theoretical economics and finance under a field called behavioral economics. 
Anticipated regret, or how much regret one thinks one will feel in the future, appears to be overestimated
I feel I cannot any longer be so prejudiced, and must leave it to your better judgment. I have really been very unhappy about it and feel I have no right to thwart you, much as I should regret feeling that you were undergoing those terrible hardships. It has caused you as much pain as it has me, and I feel I can no longer think of my own feelings. I cannot write more, but you will be happy now, won't you. (Jane Sharp, letter to