Get out of my romance fantasy

Even if you get married or become rich, everything returns to square one after a year. Eileen, transmigrated into a fantasy romance novel, seeks out the original heroine, Delia, to stop the 100th time loop. Since her transmigration, Eileen has always had one question: why has the perfect heroine, Delia, become a shut-in? Believing the changed Delia is the cause of the time loop, Eileen attempts to marry her off to the male lead, Bennett, just like in the original story... but it turns out Bennett is actually 'Eileen's ex-boyfriend' who has been transmigrated? Will Eileen be able to marry the two off and escape the time loop?