"best friend" Justin Theroux is the "icing on the cake".
"When it comes to relationships, I'm a late bloomer. But I've learnt from my mistakes, am comfortable in my own skin and have more confidence than ever. In Justin, I have met my best friend - that's the icing on the cake," Aniston was quoted as saying by German magazine TV Direkt, reports femalefirst.co.uk.
"He is kind, honest, and generous and has empathy for other people ... I think that's amazing! The fact that he also has a dry sense of humour is a big plus," she added.
The 46-year-old "The Break-Up" actress says the pair took their time before getting married because they did not need to have the "piece of paper" to prove they are together.
"We weren't in a rush. It's not like we felt any less close to one another just because we didn't have a piece of paper to prove we were together," she said.