Okla. Stat. tit. 21, § 21-1083: Injured party as witness

Any such female person, referred to in the foregoing sections,

shall be a competent witness in any prosecution under this article,

to testify for or against the accused as to any transaction or as to

any conversation with the accused or by him with another person or

persons in her presence, notwithstanding the fact of her having

married the accused before or after the violation of any of the

provisions of this article, whether called as a witness during the

existence of the marriage or after its dissolution.