Justin Theroux 'Happy' with Jennifer Aniston
Optic Photos/Pacific Coast News
02/14/2012 AT 08:00 PM EST
"I understand the curiosity, but other than saying I am happy, I am not going to indulge it," Theroux, 40, recently told New York. "That's building your own torture device."
For her part, Aniston, 42, recently described herself as feeling joyful and peaceful in the relationship.
The couple, who met on the Wanderlust set and have been seeing each other since last May, moved in together about six months ago.
But while they have no plans to get married or have children anytime soon, according to Aniston, they did recently welcome a new addition – a 3-month-old boxer-pitbull mix named Sophie.
"She’s the most adorable little cookie you’ve ever seen," Theroux told the magazine of their black-and-white rescue puppy. "She looks like she just smoked an exploding cigar."