"I'll give you this, you are a good looking c**t. Though, know I like you. You will see (it) will take an army to rock me," Michael began the message.
"Make sure the bullet goes straight throw (through) my head.
"Because I'll fly charter a jet with the hardest c**ts from Russia just for the banter," Michael continued.
"Trust me to stay your distance. Bikies wanna go me, wear their true colours, I'll always respect the lads."
Stacey and Anthony watched the finale of MAFS together on Sunday night, where they posted commentary to their Instagram Stories.
"He's a pig and the text message he sent me last night proves it," Anthony said as Stacey nodded.
Anthony seemed to be referring to that threatening message Michael had sent him on Instagram.
Stacey went on to call Michael a "pig" and Mikey a "gronk, idiot and fool".
Since the show ended, Michael has gone public with co-star KC Osborne.
They officially confirmed that they are also living together.
"It’s love," says Michael. "We have one hell of a journey ahead of us – everything is on the table. We moved in together last week."
They also have big plans on starting their own family, now that KC has met Michael's son Connor.
"One hundred percent," Michael revealed. "I think KC would be the best mum. A little dancing pop star! We are excited to start the next chapter."