Unlike her romantically impaired Private Practice character, Kate Walsh knows love when she sees it.

The woman who plays Addison Montgomery and boyfriend Alex Young got engaged in May after dating for just three months.

"We've been together since February," Kate Walsh, 39, told People.

"I know. I'm literally living the dream. But you know when you know. I was not expecting it, so it's kind of amazing."

While Kate Walsh says she loves "everything" about her fiancé, an executive at 20th Century Fox, she admits she's crazy about his looks.

"He's pretty handsome," she said, adding with a giggle: "He's ridiculously handsome!"

And it doesn't hurt that he's helping with the wedding plans... in his own way:

"He's really great. He's there, but he's not in the way! He wants to contribute."

But Kate Walsh is not afraid to take charge.

"You start getting into this and you don't want to be a cliché, but then suddenly you're like, 'I'm doing all this stuff!'"

Considering she's also preparing for Private Practice, which starts shooting in mid-July, her schedule must be packed.

"It's insane, yeah," she said. But she has a mantra that keeps her centered when it comes to wedding planning:

"Delegate, delegate, delegate!"

To help her manage things, Kate and Alex Young are taking a vacation.

"We're going to a balmy island," she said. "This is my getaway, and as soon as I come back we just hit the ground running."

Congrats again to Kate and Alex!

Steve Marsi is the Managing Editor of TV Fanatic. Follow him on Google+ or email him here.