“I decided to get engaged," he told .
"Luckily, I happened to be dating the greatest woman on the face of the planet at this time.”
The couple briefly split earlier this year and Matthew jumped back on to exclusive dating app Raya.
It appears the pair have rekindled their romance, with Matthew recently popping the question.
and Molly were not pictured together until December 2019.
as the pair enjoyed a romantic Christmas together.
Molly, a talent manager and producer, appeared to confirm the secret romance on social media as she spent Christmas at his swanky LA penthouse, posting about her “boyfriend” on Instagram alongside a photograph apparently taken at his $35 million home in Century City, Los Angeles.
In February she then confirmed that they had actually been together much longer than first thought, sharing a Valentine's message to the star.
“Second year being my Valentine, but his first as an Instagram influencer,” she wrote after the Friends actor joined the photo-sharing platform. “HVD to my favorite.”
Sources revealed at the time that Molly has been a “huge support” to amid his public battle with drugs and alcohol.
An insider revealed: “Molly has been seeing Matthew for months, they mix in the same circles and she’s originally from New York where they have spent time together.
“She has a very quirky sense of humor and they hit it off immediately.
"Molly is not interested in fame and she rarely parties, she’s been great for Matthew."
The newly engaged couple will most likely be moving into Matthew's new $6 million on a lavish home in Los Angeles, complete with a vegetable garden, training pool and hot tub.
snapped up the Pacific Palisades residence after for a combined total of $42 million.
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The actor is also known to have battled health problems, announcing in 2018 that he’d undergone surgery to repair a gastrointestinal perforation that kept him bedridden in hospital for three months.
And in April this year, he suffered a blow when his highly anticipated reunion alongside co-stars , , , and was postponed due to the coronavirus.
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That comeback delay means the actor – who – and his Central Perk co-stars will presumably be forced to wait for their reported $2.5 million individual pay checks.
Prior to dating Molly, he was in a relationship with fellow actor Lizzy Caplan for six years.