Oh, no problem! What I meant by the opening sentence was basically... Ruby has already established how she wants her life to play out. As in, having loyal friends who she could turn to, finding a partner to marry with a love as strong as her parents', and getting the dream job she's worked hard for.
Things were going swimmingly, but they start spiralling downhill when David enters her life.
Whether by chance or not, David Marquis' involvement accompanied a deterioration in her love life, caused her friends to fight amongst themselves, and directly made her lose her job.
Presently, she finds herself tied into an odd relationship with the man—one where his parents request for an heir which he refuses to consummate; his reasons guarded by only the most closest friends. Forced to violate her list of moral accountabilities, Ruby resigns to participating in his scheme of trickery, because David refuses to hand the company over to her fiance, Louis, who also happens to be his younger brother, and who stands to be married off in his place.
As the plot progresses, however, Ruby goes from hating everything concerning the savvy individual because she finds him rude, haughty, domineering, etc. To falling in love, despite many contradictions with the life she has already created for herself—and was dead-set on pursuing—which she would eventually return to after their 6-month contract marriage concluded.
I hope this gives you some more information to work with :)) I tried not to spoil too much!