(P.V. Rama Chander, Vishakapatnam)
Both sentences are grammatically acceptable. The second sentence suggests that you were married to the girl sometime ago; currently, you are not married to her. In the case of the first sentence, the meaning is not entirely clear. One is not very sure if the girl continues to be your wife or not. You may be married to her, you may not be.
“If I only had a little humility, I’d be perfect.” — Ted TurnerS. UPENDRAN