Liam added: “I think with Zayn’s particular exit and the way he chose to go, we haven’t really heard from him since he left.
“He didn’t even say goodbye if I am being honest. It was a really sordid scenario, from our side certainly. A bit strange. It’s difficult.”
Despite not saying goodbye, Liam did praise the star’s solo career.
Zayn released his first album on March 25, 2016 – exactly one year after he quit One Direction.