UFC Octagon girl Brittney Palmer's husband allegedly tossed her around like a rag doll and choked her so brutally -- he's been rung up for attempted murder ... TMZ Sports has learned.
The massive fight went down at the couple's L.A. home on the evening of June 11 ... when Brittney and Aaron Zalewski got into an argument. He had previously overheard a casting agent call her "babe" over the phone, and allegedly went ballistic.
In docs obtained by TMZ Sports ... LAPD says things got physical when they wrestled for her phone -- Zalewski noticed she was recording the argument, and during the struggle he threw Palmer, and she hit her head on a bedpost.
Brittney told cops Zalewski yelled, "Pack your f**king bags and go!" -- but wouldn't let her leave. She says he threw her down again -- pinning her face down on a mattress, with his knee in her back. She says she struggled to breathe for 2 minutes while he held her down.
And there's this -- Brittney says during the fight Zalewski scratched his own arms and yelled ... "Why are you making me do this? I just wanted you to love me."
When Brittney finally escaped the house, she called police ... around 1:25 AM on June 12. Cops arrived and busted Zalewski for attempted murder, spousal battery, and criminal threats.
He was released on $1 million bail the next day. The case is now with the L.A. City Attorney ... who will decide whether to charge Zalewski.