We Didn't

When I first started reading the story ,I was like what??What is the author trying to say by "We Didnt"? The first part of the story that says "we didn't in the light; we didn't in the darkness....we didn't in your mother's Buick eight" is very confusing to me.We see towards the peak of the story that he starts describing a sex scene at the beach where it is quite open and public.Anyone could see them there.The contradiction now comes in here:If they did it at a place as public as the beach why then did the author say at the beginning that they didnt do it in the light? I don't seem to get it.
However, i think it was an epic love story.The first sex scene is so typical of first time lovers who are always scared of pregnancy. This depicts the lives of adolescense in our societies today.The modern world has been hijacked by a strong desire for sex than for love.The way he descibes the scenes reveals his mind set at the time. All that was on his mind at the time was sex.
One other thing i don't understand is the symbolic meaning of the pregnant woman found mysteriously dead in the sea. How this finally affects their relationship is very significant. This image hunted her to a point where it created problems between them.Their argument over this woman's mysterious death served as the basis for their future disagreements on every other issue.This makes me wonder if her death was truly not a bad omen for these two.Perhaps the relationship was never meant to be.
The guy however falls in love with Gin at the end but Gin is no longer interested.This situation reflects what happens nowadays,when love is one sided and thus can not work out.