'He came right away. He jumped on a train, no questions asked, and was in my room three hours later.
'He said, “lets go. We’re goin out.” Here we are. He has been my person all of my life. He has fought monsters in my closet, and monsters that posed as principals in school buildings, you name it.
'He has taken on the world for and with me, no questions asked. He made me feel important. He made me think I was worth loving.
'He taught me how to do it all myself. And when no one else was there, he told me to love myself.
'I thank my stars for this man, that he was strong enough not only to fight his own monsters but mine too, and now my kids. I love you daddy sir. ❤️'
Fans were quick to comment on the post.
'Amazing,' wrote one fan, with another adding, 'So amazing that you have such a supportive, loving and devoted dad.'
'You are truly blessed to have a man like this as your father,' another commenter wrote.
Despite Pink and Carey separating in 2008, the two reunited in 2010 and have been together ever since.
The couple share two children - Willow Sage, 7, and Jameson Moon, 2.