When the billionaire comes knocking, she can't ditch him fast enough.Ava Young has zero interest in shallow, frat-boy billionaires like Kellen McMullen. Unless they're going to underwrite the next art exhibit at the museum where she works, she won't give them the time of day.Not that any men want the time of day from Ava. Her dowdy man-suits and sensible shoes keep all guys looking the other way. But when she receives a cruel taunt from her crush,...