I was watching the episode, where Justin confesses to Warren, that he lied to get Becca in prison, and i am so surprised by Warren's reaction (ok, any person would be shocked) but Warren's reaction got me thinking that maybe something has happened in his past, about probably not having a mother, coz the way he was going on about women and pregnant women, it made me think and also we dont know Warren's past yet
Found the scene i am talking about here -