Adelle Waldman

Adelle Waldman (Lou Rouse, Handout photo / July 20, 2013)

With courage and determination and more than a little bit of moxie, Adelle Waldman set out to crack the code.

For her debut novel, a modern-day comedy of manners called "The Love Affairs of Nathaniel P," the Baltimore-raised author decided to explore — and expose — the thinking of the kind of guy that she and her friends used to date.

Nate is a rising star on the New York literary scene, fueled by insecurity and arrogance. He's a serial dater who justifies dumping his girlfriend a few days after she'd had an abortion by reassuring himself "that he was not the kind of guy who disappeared after sleeping with a woman — and certainly not after the condom broke."

It's not that the Nates of the world are Waldman's problem any more. She's 36 years old now and happily married to writer Evan Hughes. But she wanted to figure out a few things on behalf of all the single women she knows still slugging it out in the trenches.

"There's this dynamic between Nate and Hannah in which a guy starts out being really interested in a woman but then loses interest," Waldman says.

"It might not be a universal pattern, but it's not uncommon. The woman is perplexed. She comes up with different ways to fix the relationship and it starts a downward spiral. I thought that trying to articulate that dynamic would be fun and disturbing."

So, Waldman drew on her years of reporting for newspapers in Connecticut and Ohio. She listened in on the conversations of the platonic male friends she's had since she graduated from college at Brown University and graduate school at Columbia University. And she benefited from decades of reading such astute chroniclers of human interactions as Jane Austen, George Eliot and Jonathan Franzen.

Now, she's ready to spill her guts — and in the city where she was raised. Waldman is coming to the Ivy Bookshop on Tuesday to read from her novel and answer questions.

Nate's your main character, but I wasn't always sure how much you like him.

I can be a know-it-all and I like to psychoanalyze people. But when I was writing the book, I tried really hard not to judge Nate. I thought that if I came up with some kind of psychological interpretation for his behavior, I would write a thinner narrative.

Ultimately, Nate was as hard to pinpoint as anyone we might date. He could be funny and kind and brilliant, and then in other moments hurtful and infuriating and hard to fathom.

I did feel affection for him. He had more confidence as a writer and intellectual swagger than I do, and that's something I admire. I don't think he has a complete incapacity to care, but he can be smug and unempathetic.

Nate narrates the entire novel. Was it difficult for you as a woman to find his voice?

I've read a lot of books by men that touch upon romantic relationships. A lot of books that I love and think are brilliantly written give their male characters a pass on their treatment of women.

After years of analyzing my own boyfriends and my own relationships, a light bulb went off in my head, and I realized that I had stored up a fair amount of insight into male behavior. I have two older brothers, and I also had several close guy friends since high school. Sometimes my friends would say something I would never come up with on my own about women's bodies or Internet porn. A few of those lines may have made it into my book.

Was being a female author ever an advantage?

Yes. There were certain thoughts that I can get away with expressing that a male novelist can't, unless the character saying these things is portrayed as a villain.

For instance, there's a tendency for men to see their intellectual peers as other men. They place women in a different and lesser category. Nate feels competitive toward male writers but charitable (and a little condescending) toward women writers.

Whereas as women, we think of both men and women as being our peers and rivals.

What kind of response are you getting from male readers?