I'm Forgetful

I am terrible at keeping up with anyone. How could I know my friend was in Morocco or another one got married to one of my major frenemies? I am a entrepreneur. I am so busy running my business that I forget I have friends. Sure I might tag them in a few memes every now and then but I don't stay up to date with my Twitter, Facebook, or even my phone messages. Bloody hell I forgot I had this even. I feel like such a terrible friend. Why am I so forgetful?