Was it immature of me to delete someone on Facebook for ignoring me on purpose?

I'm female, and I deleted a male friend whom I knew since childhood who use to be my neighbor We'd hang, play and all.

He was reluctant to accept my friend request until I commented on one of his photos. He accepted my friend request but didn't remember me. He was really curious to know who I was, so we began chatting, few 'Lol-conversations', etc. etc.

Sometimes he would take days to reply back, and the last time I messaged him, (in reply to one of his questions), but never replied back.
How did I know he was 'ignoring' me? Well, I could tell through News Feed because everyday he was on facebook liking pictures, etc.

Days went by, weeks went by, yet he never replied yet continued liking and sharing stuff, and so on. It got to me, and felt I was being rubbed wrong ---I get butt-hurt easily.
Was it dumb of me to delete a friend whom I haven't spoken to in a while just because it seemed like he was purposely ignoring me? Btw, we were having nice, casual chats, so I'm sure I did not say anything that would offend him. I kinda felt it was his fault though ..