Why did he reach out after 8 months?

My ex friends with benefits were involved for about 3 plus years with each other. We even said we loved each other. I decided in December that we are best not being together. He recently just reached out to wish me a happy birthday. Is he just being friendly by doing this? Or is he trying to reconnect with me in a romantic way?

Why did he reach out after 8 months?
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