Nagging won't help; but a partner's unhealthy habit hurts more than his or her life expectancy. Taking on too much responsibility for a partner's bad habit is a classic sign of codependency‚ and an unhealthy dynamic in which one person becomes too wrapped up in the other. As she learns to cope with her husband's smoking; Meagan Francis also explores where his problem ends and hers begins. What does she find? "While it's OK to worry about a partner when they're doing unhealthy things, detaching from their habits—while keeping the lines of communication open—is key. Of course, there are some non-negotiables. Illegal drug use, heavy drinking, addictive gambling, and anything severely self-destructive may warrant a "quit or else" attitude. But for those not dealing with extreme cases, ultimatums aren't the answer, and neither is an expectation that your partner will comply with your wishes. Instead, use your mutual respect to reach a compromise."