Kim Richards decided to get a nose job on this week's Real Housewives of Beverly Hills, and now she is explaining how she came to this decision.

"[E]ach time I make a change, it helps my sense of courage," Kim explains in her Bravo blog. "And it seemed exciting! A new nose to go along with all my new changes!"

"When you do something on the exterior, sometimes it gives you a sense of confidence, too," Kim continues.

Meanwhile, Kim was absent at Kyle's daughter Sophia's graduation party, but she says she had a valid excuse.

"I wish I could have been there — but as I said before, I would never miss anything for any of my nieces or nephews unless it was important," Kim writes. "My [son] Chaddy was sick, and I had to be with him. That's just the way it goes!"

We're pretty sure Sophia will forgive her.  

Source: Kim's Bravo blog