Sounds like more drama and the person meant that they would do what they want. Probably will too.
What does this mean? I put on my fb status that "you can do whatever you want . just do it" and it was towards someone. And that person comented" for sure"
Not sure what the confusion is about .. Sounds pretty clear to me. You posted "to just do it" in a sarcastic way .. This person you told it to .. Just told you .. they are gonna take your advice.
Touche!