Is ignoring someone's question rude??? (especially if its an awkward one!! )?

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A friend i used to be in contact with, we agreed to be in a relationship and we lasted for like a month until suddenly we stopped talking after i lost my phone and he never bothered to check on me on facebook. Apart from sometime on twitter when he sent me a DM asking where i've been and why my number wasnt ringing. I told him what happened and he said he was going to add me up on yahoo messeger so we'll have a chat. But he never did! I even see him on my TL on twitter but we dont tweet at eachother. He sent me a DM again yesterday saying he's angry with me and bla bla about me not caring about him but i dont understand him because i waited up for his add but it never came. I asked him and he said he was unable to download yahoo messenger on his phone. why he dint tell me all this while, i really dont know. Now, he asked if i've got a boyfriend now and i thought that was a silly thing to ask , i mean what do you care anyways?? I dint want to give him a yes or no answer even though am seeing someone at the moment. i'll describe my answer! "Him : hows life been treating you and Do you have a boyfriend now?? Me : Life's been good, cant complain! *Ignores ur other question* Him : Haha, for realz i really wana know, tell me....." I dint reply further! :/ :/ was that smart or rude?? childish or ??? what could i have answered please?? :/ :/

[Manda]

ya just block him and dont say anything it will be gone in a month