"Forgive but do not forget" seems to be the motto of Kim Kardashian who, last week, put her sister Khloe's boyfriend Tristan Thompson—who allegedly cheated on her prior to the birth of their daughter, True, in early April—on blast on social media... even after making up with the NBA star.

Speaking to Extra amid her KKW Beauty Pop-Up Shop, the reality star and businesswoman explained how she "had to" share the video of Thompson pointedly unblocking her on Instagram during Khloe's 34th birthday party on Wednesday, June 27.

"I did [the video] just spur-of-the-moment," Kardashian shared, revealing that Thompson had no idea she was going to film the moment.

"I thought about it, I was like, ‘Wait a minute, you have your phone out and this is really awkward 'cause you blocked me,' and, 'What’s up? We’re all in the same room again, can I get a follow, can I get an unblock at least?'"

Though she and Thompson are on good terms now, the beauty mogul also spoke about the importance of supporting her sisters no matter what.

"I was just raised, you know, that blood is thicker than water and family first, and that’s also what keeps us sane," she said. "When we have those family dinners and we just get to hang out and be together through all the craziness that we’ve been through, we love each other and support each other, so it’s always just fun to be together and no matter what we’ll support each other. We know that.”

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