Summer House stars Carl Radke and Lindsay Hubbard ended their engagement due to substance abuse and incompatibility.

Summer House stars Carl Radke and Lindsay Hubbard ended their engagement due to issues like substance abuse and incompatibility, leading to frequent arguments. Co-stars suspect their issues stemmed from Carl's sobriety and Lindsay's substance use, causing misunderstandings. Carl clarified on the show's After Show that they only slept together twice during their entire relationship, highlighting the challenges they faced, including couples therapy.