shoul I reply to her after broke up ??

I have been in a relationship for 1 year , We have been seeing each other one to two times in a month , after that she said that she wanna finish this contact between us .... then one day was calling her at night and she didn't responde many times then i realised that she is unable to speak to me, i decided to no contact her all that time goes (1 year)., she has called me 2 times today and i havent answered. any ideas as to whether or not this is a good play and also what might be a good thing to say to her?
but i feel like even just talking to her hurts me