After the Blac Chyna and Tyga break-up issue, the rapper has been under fire for his relationship with the "Keeping Up With the Kardashians" star Kylie Jenner. Meanwhile, the reality star pities her new boyfriend's ex and thinks that she can't compete with her.

According to a source from the Hollywood Life, the 17-year-old sister of supermodel Kendall Jenner understands the animosity of the rapper's ex after Blac Chyna and Tyga's break-up last year.

The insider said, "Kylie's young. She's pure. She's in her prime and has a world-famous last name. Blac Chyna just can't compete. Kylie really doesn't want Blac to hate her. She thinks she should hate the game instead."

"She really does. If Kylie were Blac Chyna, she'd hate herself, too," the insider added.

Meanwhile, the 25-year-old rapper defended his relationship with the reality star.

According to TMZ, Tyga does not see anything wrong with dating Kim Kardashian's half sister even though she is still underage.

Tyga said that Kylie Jenner is more mature than other adults because she is a millionaire who ran her own business, Mirror UK said.

The "Rack City" hitmaker's relationship rumors with the underage star came after Blac Chyna and Tyga's break-up last year.

The rumored couple were seen in a number of romantic outings and there were also rumors that Kylie Jenner is pregnant with the rapper's baby.

After rumors on Tyga and Kylie Jenner dating surfaced, Blac Chyna's gal pal Amber Rose was quick to blast the rapper,

Amber Rose said in her Twitter account, "She's a baby, she needs to go to bed at 7 o'clock and relax."

She also added, "[Tyga] should be ashamed of himself. He has a beautiful woman and a baby and left that for a 16-year-old who just turned 17."

The "Rack City" rapper has a four-year-old son with model and Kim Kardashian's BFF Blac Chyna.