Nicole Scherzinger apparently doesn't understand how Lewis Hamilton could dismiss their breakup so easily.
The pair have been on and off since 2007 but they called things quits, seemingly for good, in February.
When questioned about their latest split recently, Lewis acted relatively nonchalant and said it "isn't a problem" because they've been in the same position so many times before. He added that he feels "stronger than ever".
Apparently his remarks didn't sit well with the former Pussycat Dolls beauty.
"She was doing a good job of moving on, but these comments have really upset her," a source sighed to British magazine Star.
"She doesn't understand how he can be 'stronger than ever' when they were an item for so long. It's making her question their whole relationship."
Nicole and Lewis' relationship has been notoriously up and down, with rumours 36-year-old Nicole's desire to marry and have children didn't sit well with the 30-year-old Formula 1 star.
"I developed a mental attitude I would like to say was impenetrable," Lewis told the BBC.
"Of course, in previous years it has been the case where it [a break up] has affected my life in general.
"But I feel I still carry that kind of mentality from last year - and while it's not been easy, having been in this position before I feel stronger than ever, so I don't feel it's going to be a problem."
