Sick of It!!

Okay so my ex fiance X gets promoted he is a manager now at another store and he have been behind my back with someone else and now they have been talking for nine months and he got her pregnant the sad part of the story is that she works at the same place and she is suppose to have her tubes tied she was claiming . So now people are coming up to me saying girl I saw the chick or your ex . . . Ps I'm still healing would I be weong to reject people talking about her & him I'm sick of hearing it !!! What would you do ? Must I remind you we dated for awhile and was engaged going on a 1.5 :'(.. I'm still recovering. Helpppp... I've been tuff this whole time I feel. I should transfer