The logline seems to switch protagonists. First the focus is on the accountant. Then the focus switches to the actor. Who is the protagonist? Whose story line provides the unity of action to drive the plot?
If the accountant is the protagonist, then "get a break" is too vague to constitute an objective goal. Get a break for what? If the accountant is the protagonist, what is her specific objective goal?
Ditto if the actor is the protagonist: "fake a relationship" for what specific objective goal? "Stay on top " is a general goal, but loglines are about a specific, urgent objective goal.
What are the stakes in their relationship? That is, Who stands to win what if the protagonist (whoever he/she is) achieves his/her objective goal (whatever it is)? Who stands to lose what if he/she fails?