The IRS allows a spouse to file married filing jointly with a non working spouse. So, she will be included as personal exemption rather than a dependent. You will not have to indicate that she was unemployed, unless she qualifies for a healthcare exemption. In which case, you will enter it in the healthcare section of the return. She will not be considered you dependent on your return. Please visit the IRS link below and use the interactive tax assist tool to see if you qualify for an exemption.
https://www.irs.gov/uac/am-i-eligible-for-a-coverage-exemption-or-required-to-make-an-individual-sha...
