Mass. Gen. Laws ch. 208 § 22
In order to establish grounds for divorce for desertion, the plaintiff shall establish that the defendant left voluntarily and without justification and with intent not to return, that at the time such defendant left, the plaintiff did not consent thereto, and that the defendant failed to cohabit with the plaintiff for at least one year next prior to the date of the filing of the action. An action for divorce for desertion shall not be defeated by a temporary return or other act of the defendant if the court finds that such return or other act was not made or done in good faith, but with intent to defeat such action. The prior filing of an action for divorce or separate support shall not be deemed to raise a conclusive presumption to defeat an action for divorce for desertion.
Mass. Gen. Laws ch. 208, § 22