Let's look at it in two perceptive, it is not wise to discuss your past life story with a new partner if you are dating, because it might cause you a fortune precisely lose your partner. This is because there are people that their mentally is too low, their level of understanding and assimilation is nothing to write home about. By the time you think that you are doing the right thing they will misunderstand you and say ahhhhhhhhh how can i cope with this kind of girl or boy oh my friend will laugh at me oh if should tell them this.
On the other perceptive, it is wise to disclose your past life story to your partner in case someone might come up one day to castigate you before your partner, so that she or he would be able to defend you. Nowadays people can go to any lenght to destory people's happines more especially when they approved you for something and you refused. They will say ok, is it because of this boy or girl that is making you to turn my request, i will show before you know it, you don see your pix on news with a false writeup.
I advice that you should lean before you leap.
Clareth