Nicole Scherzinger has reportedly told Lewis Hamilton to factor in "a lot more time for her". The stunning singer and Formula 1 star began dating in 2008 with the on/off couple splitting earlier this year. Reports have recently indicated another reunion could be on the cards for the couple. In the past the twosome have blamed their hectic work schedules for their problems. This time TV talent show judge Nicole has allegedly told Lewis out right that she will not play second fiddle to his career anymore. "She told Lewis she wants him to start factoring in a lot more time for her," an insider told Closer. "He's taking it all very seriously this time around and has even cleared his diary for the final six weeks of The X Factor so he can come to every show. He's also agreed to then move to the US with her for three months so he can support her. " It was reported earlier this month that Lewis had been on the verge of a proposal before they called it quits. Nicole is said to have been considering how they could move their relationship forward should they give it another go publicly. "They had a big discussion about their relationship as they've realised how much they miss each other. They're both keen to get it back on track," a source told UK magazine Heat.