Medications for the Non-ADHD Spouse

Despite my dislike of using medications and financial problems and concerns about side effects, I've finally started to consider the possibility of asking my doctor about getting a prescription for an anti-anxiety medication.  My biggest fear is that the medication will work so well that I'll stop caring about my crappy marriage and will stop working to make myself and my life better.  What advice can non-ADHD spouses offer?  Thanks!