If Leah Messer-Calvert needed more proof that her marriage was over, she got it!

‘In Touch’ has exclusively obtained the text messages from Dec. 5 between Leah and her husband’s other woman, Brittany Musick, who claims she was vigorously pursued after meeting Jeremy Calvert on Twitter in November. In the texts, Brittany describes the sordid details of their involvement — she claims Jeremy even sent her a picture of his you-know-what!

leah messer-calvert messages

leah messer-calvert messages

And if the texts didn't say it all, Brittany is sharing all the details of their exchange, speaking exclusively with ‘In Touch’: “Leah messaged me first on Twitter, and then began texting me to find out details of our relationship,” Brittany exclusively tells ‘In Touch,’ on newsstands now. “At first, she thought I was lying, because Jeremy told her that it wasn’t him talking to me — it was the guys at work.”

“When I showed her the [naked] shot, Leah responded, ‘Yes, ma’am … that would be my husband,’” Brittany says. Then, “[Leah] told me that really hurt and she didn’t know what to do.”

READ MORE: Leah Messer-Calvert Is a First-Time Aunt!

But Jeremy had exposed even more. “He also told me he filed for divorce and that he has zero forgiveness for her,” Brittany says, referring to news that Leah cheated in October with her troubled ex, Robbie Kidd, which she has denied. But Leah insisted her marriage wasn’t over. “When we messaged, she said Jeremy wanted to make it work and make things perfect again,” Brittany tells ‘In Touch.’

Although Jeremy cooled texting on Nov. 23 so that the 25-year-old could “get his head on straight,” Brittany, a single mom of son Kai, 16 months, says he hasn’t exactly acted like a man trying to reconcile with his wife. “I told him we didn’t need to date; I just wanted to hang out. He promised me that we would meet up soon,” she tells ‘In Touch.’ “I feel sorry for Leah.”

For more all the details inside Leah and Brittney’s heated text message exchange, pick up the new issue of ‘In Touch,’ on newsstands now!