... I do agree that Tartarus more dangerous than the other demons I've faced. Perhaps due to the lack of fear against me, but also by the fact that they had plans and protection.

Some demons can be manipulative. Perhaps smarter than the usual ones, but it is always going to be based upon their primal needs.

Tartarus didn't need to specifically target you, nor did he did, as I said before, need to try to make a deal with you to have you act of your own accord.