A "favorite" sibling has been put on blast by the internet as she demanded ... has forgotten to pick me up from them, has not gotten me gifts for my birthday but gotten Jenn stuff," she said.

The author and public speaker put her husband on blast this morning ... Twitter has already started making memes.

but she put me on blast. I love Mariska. Mariska's become a close friend. Like I say, how many friends have you had for 25 years that you see every day? You know? So, of course, we became close ...