Bravo's Andy Cohen recently apologized to former The Hills stars Spencer Pratt and Heidi Montag after an ancient reality TV beef was revived, but Spencer wasn't keen on burying the hatchet. There's a lot of backstory here – some recent,

Andy Cohen apologized to Spencer Pratt and Heidi Montag during the Wednesday, Jan. 29, episode of 'SiriusXM’s Andy Cohen Live' after calling 'The Hills' alumna "trash" in 2011.

During the Wednesday, January 29, episode of his SiriusXM show, Andy Cohen Live, Cohen, 56, explained that after he was “tagged” in comments about Pratt, 41, not wanting to appear on Watch What Happens Live With Andy Cohen he reflected on why The Hills alum would be mad at him.

Spencer Pratt shut down the possibility that wife Heidi Montag will appear on “The Real Housewives of Beverly Hills” on Bravo — partly because of comments that Andy Cohen made about Montag, 38, over 10 years ago.

Pratt was referring to Cohen's 2011 comments about his wife joining the Housewives franchise during an episode of WWHL. At the time, he called The Hills alum "trash" and claimed, "I would sooner stab knives into my own eyes than see her on this network" before he apologized for the "tasteless" jab a few days later.