Sending a "Happy birthday" message to someone who rejected me in the past?

Anonymous
I know it's kind of stupid, and normally I wouldn't care and just post "Happy Birthday" on his wall on facebook or something. But he ignored a message I sent him once already, so I don't want him to think I'm still after him and make a fool of myself. Should I just post it like I do when other friends have birthdays or not to do anything about it? Help! :)
Updates
+1 y
It wasn't very clear in the question, I'm not interested in him anymore, but we used to talk a lot before, this is why I was considering it in the first place. But I guess sending him something does look desperate so I won't do it.

Thanks.
Sending a "Happy birthday" message to someone who rejected me in the past?
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