"I think that I'm happy."

Lindsay Lohan's sober declaration in the December issue of Harper's Bazaar, after spiraling out of control in public for the past couple of years, is reassuring. But exactly who is making the 22-year-old actress happy is the latest center of intense public speculation.

"The second I start talking about whomever I'm seeing, a month or two later it's failed," the actress demures, before copping to the relationship that's apparent before everyone's eyes.

Click for photos of Lindsay Lohan.

Linday Lohan and Smanatha Ronson have been an item for months, photographed at countless clubs where Samantha spins records as a deejay; at Ronson's sister's fashion show in New York; in bikinis on the beach in Los Cabos, Mexico, and more.

"I think it's pretty obvious who I'm seeing," Lindsay admits, still refusing to name names. "She's a wonderful person and I love her very much."

But is Lindsay a lesbian?

"No."

A bisexual?

"Maybe. Yeah," she allows. ""I don't want to classify myself. First of all, you never know what's going to happen — tomorrow, in a month, a year from now, five years from now. I appreciate people, and it doesn't matter who they are, and I feel blessed to be able to feel comfortable enough with myself that I can say that."

Click to Harpersbazaar.com for the full interview.