Throughout the decades, "Days of Our Lives" has given fans some incredible love triangles. There have been triangles between Bo Brady, Hope Brady, and Billie Reed; John Black, Marlena Evans, and Roman Brady; Sami Brady, Austin Reed, and Carrie Brady; and many more. However, one of the most dramatic triangles in the NBC soap opera's history was that of Kate Roberts (Lauren Koslow), Victor Kiriakis, and Vivian Alamain (Louise Sorel), per Soaps in Depth.

After coming to Salem in 1992, Vivian met and fell in love with Philip Kiriakis' father. The two eventually got married, but their relationship didn't last long. Victor found himself drawn to Kate during his marriage. After falling hard, he opted to leave his wife to pursue a romance with her. Of course, Vivian was furious about Victor's betrayal and looked to get revenge. According to Soaps, in 1995, Vivian even orchestrated a plane crash in an attempt to kill Kate so that she could have Victor all to herself.

The feud between Kate and Vivian never died down, and the two battled it out until Vivian's dying day. Of course, Kate could never forgive her arch enemy for stealing something so precious from her — the ability to carry her son Philip.