First things First....If you have to tell someone your a Christian--Chances are your not really! Second, if your so Christian why are you having intimate relations with someone other than "your husband"...Sounds to me like your a hypocrite.
Now, if you drop the Christian act you will be better off. Also drop the guilt act--you knew what you were doing when you did it...And yes, it does constitute sex and NO your not so virgin anymore technically...