I think you've nailed it. You just need to emphasize how young and handsome the CEO is + how he oozes money from his blackheads and how his bank account has more digits than the FL's telephone number.
The ML is a red-flag level of possessive despite having a legion of women by his side and the FL? Hanging out with other men? nope. The secondary ML is a scapegoat tossed into the story in order to advance their relationship.
The FL is all into that anyway because the CEO is hot (and rich). He's good at everything, apparently, and the FL herself can't sort a pile of documents without tripping and falling on his expensive suit (+points if she spills coffee on him).
There must be also be an arc featuring a convenient memory loss - namely, amnesia due to a car accident.