Ex in juvi

Tia
So I'm in a relationship, I lost my virginity to him but there's this boy who I went through a lot with - he hurt me emotionally and physically and I have a lot of anger and frustration towards him, he's in prison currently and i know he will be out in February and I know he will message me as soon as he is out - I don't know what to do? Should I reply ,tell him how he's effected me or just ignore him ? I don't know ?