The 'Glee' co-stars have only recently opened up about their relationship even though they have been dating since January and Lea, 26, revealed she has never been happier than she is now.
She told America's Marie Claire magazine: ''I don't even remember a time when he wasn't my boyfriend. No one knows me better than Cory. No one knows what it's been like to go through this more than he does...He makes me feel like I can do anything.
''For the first time in my life, I feel really, really settled and happy. I feel like the luckiest girl in the world.''
Lea also explained that 'Glee' guest star Kate Hudson is her idol because the actress personally called her after reports emerged that pair did not get on while filming together.
Kate told Lea: ''I just heard about that, and it f*****g sucks. I want you to know I think you're amazing.''
Lea explained: ''After that she went straight to the top of my list because it was so classy of her to take a minute, even though we both knew it was the biggest piece of crap in the whole world. I told her 'I love you, and I adore you. Thank you so much for creating a human moment with me.'''