Why would my ex boyfriend 'poke me on Facebook? How should I respond?

Anonymous
I saw my ex boyfriend ' poked me' on Facebook today. We broke up seven months ago and haven't spoken since the first week of January. In Jan, we were in touch by email and it didn't go well.

He has not provided me closure and refuses to talk about the past or work through/admit his problem areas. I contacted him in Jan only to deal with unresolved issues, but he refused to cooperate! Then, he had the nerve to ask for my friendship! Hell no! As if I could be friends with a person that won't confront issues and disappointed me in many ways. I don't think so...

I was so mad when he didn't cooperate, I told him I didn't want to be friends at all. I didn't talk to him since and three months passed. NOW, the jackass that had me blocked on FB previously, decides to POKE ME out of the blue! WTF!
I felt sick the whole day amd more pissed because he didn't bother to write a normal message and instead just poked me!

Why would my ex boyfriend 'poke me on Facebook? How should I respond?
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