Shia LaBeouf is reportedly engaged to his on-and-off-again girlfriend Mia Goth. But with the former "Transformers" actor's dating history, some showbiz insiders are wary if the rumored engagement will make it down the aisle.

Shia LaBeouf and Mia Goth, who've been dating since 2012, have been sparking the public's curiosity on their wedding plans for months now. In fact, the engagement reports started last March when the British actress was seen wearing what appeared to be an engagement ring during a Miu Miu event at Paris Fashion Week.

Since there had been no engagement announcement that transpired after the sighting, many thought that Shia LaBeouf and Mia Goth have ended their relationship, especially after their taped public altercation in Germany last summer, People noted.

The latest sighting of the couple in Los Angeles on Wednesday, however, apparently hinted an engagement when the "Nymphomaniac: Volume II" actress was spotted wearing a "sparkly ring" on her ring finger again. And according to Us Weekly, LaBeouf even told a Gelson's cashier that he's getting married.

LaBeouf's reported admission came after he called Goth as his fiancée during his live-stream performance art project #Elevate, in which he spent 24 hours in an elevator in February.

While many are seemed excited about Shia LaBeouf's engagement, his dating history reportedly hinted that the couple might not make it to the altar. Celeb Dirty Laundry even cited the fact that LaBeouf "can barely be out of one relationship" before he jumps into the next.

The celebrity gossip site further claimed that a few weeks after Shia LaBeouf's altercation with Mia Goth in July 2015, he was then reportedly hooking up with "American Honey" star Sasha Lane. But his relationship ended with Lane in October 2015 and he reunited with Goth.

LaBeouf has also dated Carey Mulligan but their relationship ended in 2010. He then dated stylist Karolyn Pho for two years, before it ended in 2012, the year when he immediately dated Goth.

Considering Shia LaBeouf's dating history, CDL claimed that it will be a "miracle" if he and Mia Goth will get married, and a "double miracle" if the engaged couple will stay married.

Meanwhile, a rep for Shia LaBeouf has declined to comment on the actor's engagement to Mia Goth.