none
i never said there were any, and i wholly respect your personal commitment to abstain untill marrige. it does add an extra bond between you and your partner.
however, many people are not ready, or simply do not wish to make this commitment. there always have been, and there always will be. extra and premarital affairs have always taken place. show me an era in history and ill show you an extramarital afair.
now, if we can accept the fact, the rest is obvious.
and the church is not doing all it can, it has denied that condoms are an effective barrier against HIv, and is refusing to alllow missionarrys in africa to distribute them.