Former MMA star, War Machine -- aka the scumbag who is serving a life sentence for brutally beating his ex-gf -- is getting married Friday, proving love really must be blind.
Sources close to the situation tell TMZ ... he will marry Ashley Farrington at Lovelock Correctional Center in Nevada. She's the woman who befriended him after writing letters to him back in 2017.
As we first reported ... their relationship evolved to visits in prison and eventually their engagement. There will be no traditional honeymoon -- the impending nuptials are happening despite Nevada's strict rule of no conjugal visits.