Is it normal that i never missed anybody?

I have never missed anybody, my whole life. I have never missed any of my family members, was never sad when I was leaving them for a while. I never missed my gf or my best friend, too. I don't remember ever wishing someone to be next to me to like share the moment.(except when i had crushs) I just thought that it might not be compeletly normal, because I actually feel like I never experienced a basic feeling, which I was only able to hear from other people. Is it normal?