(1) A decision-making representative shall, with effect from the date on which an event specified in paragraphs (a) to (c) occurs or, in the case of an event specified in paragraph (d), at the expiry of the period referred to in that paragraph, be disqualified from being a decision-making representative for the relevant person where the decision-making representative is the spouse of the relevant person and -

(a) the marriage is annulled or dissolved either -

(i) under the law of the State, or

(ii) under the law of another state and is, by reason of that annulment or dissolution, not or no longer a subsisting valid marriage under the law of the State,

(b) either a decree of judicial separation is granted to either spouse by a court in the State or any decree is so granted by a court outside the State and is recognised in the State as having like effect,

(c) a written agreement to separate is entered into between the spouses, or

(d) subject to section 2(2), the spouses separate and cease to cohabit for a continuous period of 12 months.