Lisa Vanderpump is opening up on the emotional last year she's had, including her blowout fight with former friend Kyle Richards.

Taking to her blog on Bravo, the 58-year-old reality star explained how tough things have been, citing the death of her brother Mark Vanderpump, who passed away after taking his own life in May 2018. "This last year has been extraordinarily challenging and I admit I floundered – I didn’t cope – as I wallowed in the depths of depression, having some good days and many bad," Lisa wrote. & DailyMailTV Summer Party At Tom Tom

Lisa then addressed the end of her friendship with Kyle, which occurred after the 50-year-old actress came to her home and accused her of lying. The event ended with Lisa's husband Ken Todd kicking Kyle out. According to an episode of Watch What Happens Live With Andy Cohen last month, Kyle has not been in contact with either of them since.

"For me to put my hand to God and swear on my children’s life and still have my friend disbelieve me is unacceptable," Lisa stated in her post. "I assure you, if any of my friends were as vociferous in their statement of innocence, holding up their children’s life … guess what? I would believe them. That is where the show started but is ultimately where our friendship finished."

She continued on to discuss the Puppygate scandal, which saw a puppy Dorit Kemsley adopted from Lisa's charity ultimately end up in a kill shelter.

"I had spoken to Dorit a few days prior, and she explained to me that a woman had come to her house and fallen in love with Lucy, and that the little dog was apparently going to a new home 'for a much better life,'" Lisa recalled. "I said that it was impossible for us to ever give them another dog, to which she agreed. I wasn’t angry with her, but I couldn’t understand why she didn’t return Lucy."

"I don’t believe for one minute that Dorit would’ve knowingly left the puppy in a shelter, but she was guilty of a careless choice," she added.

We'll keep up with Lisa's blog to see what other updates she provides.