The codependent individual often feels responsible for the other person's happiness, choices, and even failures, leading to a relentless cycle of giving, controlling, and often, resentment.

Is it true loyalty or something more complex? Learn the 7 key co-dependency signs that are often hidden as loyalty, from sacrificing your needs to enabling behavior.

"Senate Republicans apparently saw the House Republican tax plan as a challenge, because their version of this bill is an even bigger rip-off," said Democratic Sen. Ron Wyden.