A Civil Campaign (Vorkosigan Saga #12) by Lois McMaster Bujold

It's spring in Vorbarr Sultana, and a young person's fancy lightly turns to thoughts of love ... money ... bio-genetics ... love ... lack of money ... incompatible planetary sexual mores ... love ... District succession scandals ... the Emperor's wedding ... and, of course, love ...

Lord Miles Vorkosigan, youngest Imperial Auditor to be appointed by the Emperor since the Time of Isolation, has a problem all his new power can't solve: unrequited love for the beautiful Vor widow Ekaterin Vorsoisson. Ekaterin is violently allergic to marriage as a result of her first exposure. But as Miles learned from his late career in galactic covert ops, if a frontal assault won't do, go to subterfuge. He has a cunning plan ...

Lord Mark Vorkosigan has a problem: his love for the sunny Kareen, daughter of Commodore Koudelka, has just become unrequited again. But if all his new money can't solve their dilemma, perhaps a judicious blending of science and entrepreneurial scheming might. He has a cunning plan ...

Lord Ivan Vorpatril has a problem: unrequited love in general. True, with the men on Barrayar out-numbering the women five to four, his odds aren't good. But Ivan had never thought the odds applied to him. He too has a cunning plan ...

If no battle plan survives first contact with the enemy, just imagine what all Miles's closest friends and relatives can do to his romantic strategy!