If in any proceedings for a dissolution or separation order the respondent alleges and proves any such fact as is mentioned in section 168(5)(a), (b), (c) or (d) the court may give to the respondent the relief to which he would have been entitled if he had made an application seeking that relief.
When applying subsection (1), treat—
the respondent as the applicant, and
the applicant as the respondent,
for the purposes of section 168(5).