Demi Lovato’s ex-fiancé Max Ehrich — who was arrested this week for allegedly abusing his mom — is going to rehab for nitrous abuse, which he claims started when he was kidnapped by gang members last ...

Demi Lovato's ex-fiancé Max Ehrich's legal situation may have just gotten worse ... 'cause it appears he was streaming on Instagram just prior to being arrested for allegedly assaulting his mother ...

Crazy new details in the arrest of Demi Lovato's ex-fiancé Max Ehrich have surfaced ... and the dude is being accused of roughing up his mom while abusing nitrous oxide, according to a police report.