Colo. Rev. Stat. § 13-20-201
The remedies provided by law on or before April 27, 1937, for the enforcement of actions based upon alleged alienation of affections, criminal conversation, seduction, and breach of contract to marry have been subjected to grave abuses, caused extreme annoyance, embarrassment, humiliation, and pecuniary damage to many persons wholly innocent and free of any wrongdoing who were merely the victims of circumstances, and have been exercised by unscrupulous persons for their unjust enrichment, and have furnished vehicles for the commission or attempted commission of crime and in many cases have resulted in the perpetration of frauds, it is hereby declared as the public policy of the state that the best interests of the people of the state will be served by the abolition thereof. Consequently, in the public interest, the necessity for the enactment of this part 2 is hereby declared as a matter of legislative determination.
C.R.S. § 13-20-201