Amber Portwood's ex-fiance Matt Baier has quickly moved on from the demise of their relationship -- so much so that he got married to someone else!

Matt, who split from Amber only months ago after three years together, tied the knot with Jennifer Kathleen Conlon during an impromptu Las Vegas wedding on Tuesday, E! News reported.

Matt, 46, apparently met his wife in a Las Vegas restaurant. They've been together for about six months now but chose to keep their romance hush-hush since "she's not a public figure."

Although Matt never officially proposed marriage to Jennifer, he said their decision to wed "just kind of came up."

"It was one of those situations where it just kind of felt like the right thing," Matt explained to E! News. "We really get each other. We both have overcome a lot of stuff. It felt like the right thing to do. It just kind of happened that way."

Matt and Amber, 27, had planned on tying the knot in an October 2017 wedding, however, they called it quits on their romance while filming Marriage Boot Camp earlier this summer.

The pair's relationship began falling apart in August 2016 when reports surfaced Matt was facing legal trouble for failing to paying child support to multiple other women for several secret biological children, according to E! News.

And in a June episode of Teen Mom OG, Amber was also shown calling off her wedding after Matt -- a recovered drug addict -- gave her co-star Catelynn Lowell a Xanax.

Given Amber's own troubled past, the five-years sober reality TV star has zero tolerance for that type of behavior, telling Us Weekly at the time that, in addition to Matt's habit of being dishonest, "It was pretty much the straw that broke the camel's back."

Ironically, Matt called Amber a "psycho" during that June Teen Mom OG broadcast when she refused to elope with him in Las Vegas. (So it appears Jennifer made his wish come true!)

Following the break-up, Amber told Dr. Drew Pinsky on his The Life #YouLive podcast in July that she and Matt were still talking, although there was no chance of a reconciliation. Amber insisted she wanted to regain her independence because she was "too focused on Matt."

But Amber didn't stay single for long.

Amber confirmed earlier this month she is expecting a child with her new boyfriend Andrew Glennon, a cinematographer whom she met while taping Marriage Boot Camp with Matt. Andrew had reportedly reached out to Amber after the show wrapped.
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Amber welcomed her first child, daughter Leah -- who is now eight years old -- with her other ex-fiance, Gary Shirley. Amber's first pregnancy was documented on an episode of 16 & Pregnant in 2009.