Multiple sources tell ET that the 32-year-old model plans to divorce her husband of nearly nine years.
"She's very sad," one source says. "She still loves him and has always been very supportive of him."
According to the same source, Wilkinson and the former NFL pro, who was a wide receiver for the Minnesota Vikings, Philadelphia Eagles and Indianapolis Colts, have been trying to make things work for a while now.
"Kendra and Hank went to therapy after Hank's [alleged cheating] scandal to try and work on their marriage, but in the end, his scandal always hung over them like a cloud," the source adds. "Hank has never quite recovered from losing his football career. He never really found himself after that."
Kendra Wilkinson Feels 'It's The End' For Her Marriage to Hank Baskett-- See The Emotional Clip
ET has reached out to reps for Wilkinson and Baskett for comment.
Over the weekend, Wilkinson seemingly was nearing her breaking point when she took to Instagram Stories, exclaiming that "life isn't making any sense to me right now" and that she needs to "love myself again."
In a series of pics and videos posted to the app, Wilkinson was not wearing her wedding ring. In one post she wrote that she was "proud" of herself.
"How much strength does it take to be strong?" she asked her followers. "I try so hard to be good but never good enough. Therapy is for the birds."
"I need to love myself again and I will," she continued. "Life is too precious."
"Yes we are having issues," she admitted in a lengthy post aimed to debunk rumors about their marriage. "My job is reality TV and I love my job [but] unfortunately these issues at home are affecting my decisions cuz the last thing I want to do is hurt Hank."
Wilkinson and Baskett tied the knot in 2009 and have two children, an 8-year-old son, Hank IV, and a 3-year-old daughter, Alijah. The couple has struggled through a number of high-profile scandals over the course of their marriage, including an alleged cheating scandal in 2014 between Baskett and YouTube model Ava Sabrina London.
"I don't say the word 'cheat,'" Wilkinson said at the time about her husband's reported affair. "I can say he was not loyal to me. I don't care about the act. I care about how he reacted to it and how I was told by the media what happened. That scarred me."