According to Us, a December 18 fight did the couple in when Maynard allegedly realized Holm was only in it for the fame.
"Emily put her whole heart into this relationship and is shocked at how much Jef has changed. She feels like he is just using her for fame," said the source, referencing how Maynard really became suspicious of Holm's motivates earlier this month when they met up the night before Ashley Hebert and J.P. Rosenbaum's December 1 wedding -- which was later televised on December 16.
"Jef came to Emily's hotel, dying for her to take him to the wedding."
However, a blowout fight that night reportedly ruined any chance Holm had of attending the wedding.
"Now she knows the only reason [he wanted to attend] is because he wanted the publicity," added the source.
But the pair apparently decided to give their relationship another shot in mid-December when Holm returned to Maynard's hometown of Charlotte, NC on business for his water company. The couple was photographed on December 11 having drinks together at Connelly's bar in Charlotte following dinner at a restaurant in which a local source claims the couple had been acting "friendly and flirty."
"He was begging to get back together. They were working on it," the source close to Maynard told Us.
The couple allegedly reunited after reports had surfaced that both parties were seeing other people. Holm had reportedly been dating 23-year-old New Orleans native Katianna Bear in November, while Maynard had allegedly been involved with both Cab band member Alex DeLeon and NASCAR truck racer Jason White.
According to Us, Maynard even "blew up" at Holm after discovering he had a pancake breakfast and visited the San Diego Zoo with Bear on the day she was at Hebert and Rosenbaum's wedding. However, Maynard forgave the 28-year-old entrepreneur after "he swore that he and Katianna were just friends," said the source.
Earlier in their relationship, Holm reportedly found explicit text messages in Maynard's phone to and from NFL football player Matt Leinart, which caused a huge argument. When Maynard recently tried arguing with Holm about his fling with Bear, Holm sent her copies of the sexting exchange and threatened her saying, "Be nice or I'll release these," the source told Us.
"Jef and Emily can fight pretty dirty. He likes the power of holding things over her head."
However, Maynard can allegedly blackmail Holm just as easily in return.
"She has the texts saved of when he cursed her out and called her a bad mom," said the source.
Added an Us insider, "I'd be surprised if they ever got back together.
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