Earlier this week, Colton Underwood and Cassie Randolph over a year after coming together on the of .Despite that the couple called it quits because Radloph was not ready to get married, a source told that there's no animosity between the two, and that their relationship eventually just naturally fizzled out."Cassie and Colton have a great friendship, but that’s what it was for most of their relationship,” the source said. “It was really very hot and heavy.