Article continues below advertisementThe tension between Lola Sheen and her sister Sami Sheen is heating up once again.On Wednesday, January 13, Sami took to TikTok and accused her younger sister of secretly seeing her ex-boyfriend. In the video, she set the tone with Lana Del Rey's "Norman F------ Rockwell" playing in the background."Imagine finding out your sister and ex-boyfriend have been seeing each other behind your back this whole time," Sami said in the clip.