I am with @unaluna on a lost chance to give the benefit of the doubt. I think there were two options in front of you, @jesyka: decline the offer to reconnect and say nothing if you were not willing to give the benefit of the doubt, or, give the benefit of the doubt and not criticize that woman. I do not believe that there were any other good options. She might have been ambivalent and in the face of criticism, resorted to lashing out against you. It is now not possible to do anything about it, but if, against all odds, the situation repeats with another person who reaches out to you after going incommunicado for years, consider doing one of these two things depending on how you feel: either decline to connect without any explanation (not responding at all is OK), or, give the benefit of the doubt and treat it as accepting an olive branch extended to you.