I just finished On the Nature of Human Romantic Interaction by Karl Iagnemma on Thursday. What a great name for a collection of short stories written by a mechanical engineer from MIT. The stories themselves aren't that awesome, although this is the first time I've encountered non-trivial, formal mathematical notation in a "pleasure-reading" book. Karl seems to have a fascination with not-quite-modernized human society and the cold. I'm not sure if the cold in his stories is symbolic or just something that he relates to and therefore feels the need to include.
The title of the book is the title of the first short story and also of an unfinished PhD dissertation by the protagonist of said story. Not all of the stories are about romances between romantically-awkward geeks. It's not on my list of books to recommend, but you can borrow it if you want.