Grounds for Divorce in Delaware:
A. The Court shall enter a decree of divorce whenever it finds that the marriage is irretrievably broken and that reconciliation is improbable.
B. A marriage is irretrievably broken where it is characterized by:
1. Voluntary separation; or
2. Separation caused by respondent's misconduct; or
3. Separation caused by respondent's mental illness; or
4. Separation caused by incompatibility.
C. Previously existing defenses to divorce of condonation, connivance, recrimination, insanity and lapse of time are preserved but only with respect to marriages characterized under subsection (b)(2) of this section.
D. The only defense to a divorce action shall be the failure to establish either:
1. The marriage of the parties; or
2. Jurisdictional requirements of § 1504 of this title; or
3. That the marriage is irretrievably broken; or
4. A defense permitted under subsection (c) of this section because of the characterization of the marriage under subsection (b)(2) of this section.
E. Bona fide efforts to achieve reconciliation prior to divorce, even those that include, temporarily, sleeping in the same bedroom and resumption of sexual relations, shall not interrupt any period of living separate and apart, provided that the parties have not occupied the same bedroom