Yep, Mark knows he's a target. He was discussing with Jason at the chess table they need to get rid of Paul. Of course Jason says they don't have the votes, but they do. They only need 4 votes. They don't tell Matt of their plan, let Matt take Jason down, have Alex put Paul up and Cody, Jason, Mark and Kevin can vote out Paul.
It's so frustrating watching this and like Mizzoufan said making it to Jury is nothing to be happy about, but Paul keeps telling them how great jury is how they can relax in a great big house with a cook and maid and collect money. Of course they are all forgetting Paul was never in the jury house. I cannot believe how stupid they are, literally. I know Mark and Elena realize it, but they know they have no one backing them, well except Cody, but he's as good as gone.