If u stopped taling to ur ex bf, who still loves u!! But u have moved on, n u feel bad for him, n he has stopped talkin to u coz u asked him to, shud u go back n start talking but u have no plans to get back in d relationship....
leave the door open for you guys to be friends eventually, bur let him come to you when he is ready and over you. don't go to him that would lead him on and hurt him even more and those aren't your intentions. good luck