Things between Khloé Kardashian and her cheating baby's father/boyfriend, Tristan Thompson, seem to be on the up as the two have reportedly fully reconciled and are working towards repairing their relationship.

One person who reportedly isn't too thrilled about this news, however, is Thompson's alleged side-chick, Lani Blair, and she allegedly has a solid reason as to why she's so salty.

According to Celebrity Insider, Blair is upset that the two patched things up because the baller reportedly promised to "take care of her."

The site went on to further report that the NBA star would always tell the Instagram model and bartender she meant a lot to him and that he would hold her down if she kept their fling a secret and stayed in the shadows. However, now that everything is out, his plans have seemingly changed.

"Lani definitely held up her end of the bargain," an insider added.

Blair is the woman who was caught creeping out of Thompson's New York hotel on that infamous night just two days before Kardashian gave birth to their daughter, True.

"Tristan and Lani had been seeing each other on and off for a long time without being outed," the source continued. "So to see him spending time with Khloé was shocking to Lani, because he does not spend much time with Jordan [Craig], and the fact that Khloé would go support Tristan at his game only means they are working things out and there are deeper feelings among them."