My 600 Lb Life Season 4 star Lupe Donovan has lost her husband - to her co-star from season 6, Karina Garcia.

Karina has been low key cozying up to Lupe's estranged husband Gilbert Donovan for months now.

Gilbert and Karina finally went public as a couple this weekend, when they posted the below image on Facebook, but the couple had been sharing pics together and sparking speculation all year long. 

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In February, Gilbert explained on a LIVE that he was Karina’s "personal trainer." He also claimed that he two were “best friends.”

Gilbert was an extremely controversial cast member on the show My 600 pound life. Most viewers hated him, after he was seen pressuring Lupe into sex almost immediately after weight loss surgery in her debut episode.

According to Gilbert, he and Lupe are still married because, while he sent her the divorce paperwork, she never signed it.

As for Lupe - she's looking great now. Here's what she looks like now - after losing 250 pounds:

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Lupe Donovan aka Lupita Samano has lost over 420 pounds in two years! She was over 500 pounds by the time she was a teenager. Lupe even went into a diabetic coma in her twenties when she went out in the yard and collapsed.

Her addiction to food began when she was little, after her father abandoned her. He apparently put her and her sister, Maria, in the bathtub never came back. Her sister got out of the tub, but Lupe was sitting there for eight hours, waiting for her father to return.