Family isn't a huge theme in "Here We Are"—except insofar as a newlywed couple is a family of two. But we're thinking specifically of the part where the wife accuses the husband of not liking her family.
It's not necessarily a super-serious accusation: there might be some truth to it (or there might not be), but the real energy of the story is centered on the couple's anxieties about finally having sex. It seems like the wife's accusation is a way of deflecting her worries from that major concern and projecting them onto something else.
"Here We Are" suggests that when you marry someone, you marry that person's whole family, in a way.
"Here We Are" just suggests that you really just marry the person you marry. You can take or leave the family, depending.
Both members of the couple are pretty innocent. The wife is worried about consummating the marriage and is apparently a virgin—the classical form of "innocence." The husband might be a virgin too, but it's actually a little unclear. The husband calls his wife a "baby lamb" a couple times—which is a term of endearment (though potentially a condescending one) and a way of saying someone is extremely innocent.
Also, some of the imagery at the beginning—referring to screen doors that don't rust and codfish without bones—might be meant to invoke something that's innocent or pure, but in a way that seems a little unnatural or weird. Experience isn't meant to be a bad thing. It's natural… unlike a creepy boneless fish.
Innocence is a state of mind.
Innocence has more to do with your actions than with a state of mind.
The wife and the husband both act pretty jelly in the middle of the story: the wife accuses the husband of being hung up on her friend Louise, after he enthuses about her "knockout" looks. The husband accuses his wife of having a thing for a traveling salesman named Joe Brooks.
It's a stew of petty jealousies—but the heat that's causing it to simmer is coming more from the unresolved sexual tensions (the fact that they haven't made their marriage "official") than from the genuine nature of these supposed extramarital passions.
"Here We Are" suggests that Robert A. Heinlein's statement "A competent and self-confident person is incapable of jealousy in anything. Jealousy is invariably a symptom of neurotic insecurity" is true.
"Here We Are" suggests that Elizabeth Bowen's statement "Jealousy is no more than feeling alone against smiling enemies" is true.
Seeing two people have trouble communicating is one of the oldest forms of humor—just check out the corny (but still hilarious) "Who's on First?".
This husband and wife really have trouble talking to each other. They both are too timid to be really explicit about how they're planning on having sex and consummating their marriage when they get to the hotel. The husband says, "I mean. I mean—" whenever he's on the verge of mentioning the sex they'll (probably) be having in a couple hours. Their arguments about hats and old crushes are really just a way of diverting their attention from the elephant in the room—the hot sex elephant in the room.
"Here We Are" suggests that speaking openly and directly is a good strategy when talking to someone you love.
"Here We Are" suggests that there are some things you should keep to yourself—you don't have to be open to your significant other about everything.
This story is mainly about sex: having it, not having it, being worried about it, etc. And marriage is an institution designed around allowing people to get it on in a legally binding fashion. The newlywed couple discusses their marriage quite a bit: the wife is worried it won't work out and the husband says that they're not really married yet (because it hasn't been consummated.)
But beyond the sexual anxieties, the story raises real questions about marriage. What makes a good marriage tick, anyway? And will these characters be able to give each other enough affection and understanding to let their marriage endure?
"Here We Are" suggests that Nietzsche's statement "When marrying, ask yourself this question: Do you believe that you will be able to converse well with this person into your old age? Everything else in marriage is transitory" is true.
"Here We Are" suggests that Abraham Lincoln's statement "Marriage is neither heaven nor hell, it is simply purgatory" is true.
Sex is the mega-theme of this story. That's what they're talking about, in between the lines, isn't it? They're talking about getting down to business—if they can ever stop squabbling. It's the major joke of the story—the fact that this couple is talking about sex without ever really directly talking about it.
But what is Parker saying about gettin' it on? Is it the central part of human relationships? What does it have to do with love? Sex is like that—full of quizzical worries and queries tossed off into the night with (hot, sexy) abandon.
"Here We Are" suggests that George Michael's lyric "Sex is natural, sex is good. Not everybody does it, but everybody should" is true.
"Here We Are" suggests that Arthur Schopenhauer's statement that "[Sex] destroys the most valuable relationships, breaks the firmest bond, demands the sacrifice sometimes of life or health, sometimes of wealth, rank, and happiness, nay, robs those who are otherwise honest of all conscience, makes those who have hitherto been faithful, traitors; accordingly on the whole, appears as a malevolent demon that strives to pervert, confuse and overthrow everything" is true.