Here's a thought to ponder....Maybe the reason that Allen "spoke" so frequently to the bimbo is because she was actually his friend.
I know that for some of you that might be hard to fathom but it does happen.
Could that be why some of the communications exchanged were with sexual overtones?
Jarheads are usually very plainly outspoken in all matters when with friends.
Could it be that vulgarity is seen as sexuality by a casual reader?