Slow River by Nicola Griffith is a great novel that fits your prompt. It won a Lambda, won a Nebula, too.
As for love triangles, though they are generally not to my taste, I can recommend Sense and Sensibility by Jane Austen. Marianne Dashwood falls in love with John Willoughby. Colonel Brandon is quietly in love with Marianne for pretty much the entire novel. Meanwhile, her elder sister Elinor Dashwood falls for Edward Ferrars only to discover he is secretly engaged to another woman, Lucie Steele. (Money is a huge problem, too.) But everything works out in the end! It's a very satisfying read, a book I have enjoyed many, many times. The 1995 movie is pretty fabulous, too.
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As for love triangles, though they are generally not to my taste, I can recommend Sense and Sensibility by Jane Austen. Marianne Dashwood falls in love with John Willoughby. Colonel Brandon is quietly in love with Marianne for pretty much the entire novel. Meanwhile, her elder sister Elinor Dashwood falls for Edward Ferrars only to discover he is secretly engaged to another woman, Lucie Steele. (Money is a huge problem, too.) But everything works out in the end! It's a very satisfying read, a book I have enjoyed many, many times. The 1995 movie is pretty fabulous, too.