Though the pair have been quite private about their relationship, Lea has posted the occasional adorable couple photo to her social media and took the same avenue to announce her engagement. She captioned it with a simple "Yes", and added a ring emoji.
The groom-to-be proposed to Michele with a four-carat diamond ring he designed with Leor Yerushalmi and the Jewelers of Las Vegas.
'They've been friends for a long time, a few years, ' a source told People at the time.More news: Trump to visit Britain, hold talks with May on July 13
Michele has been dating boyfriend Zandy Reich since July 2017, and the two have been inseparable.
Lea previously dated iZombie star Robert Buckley for several months before splitting around a year ago.
"When I'm not working, I'm at home with my cat, with my family, with my boyfriend, with the people that I love - and that's how I reset, and that's how I centre myself", she said. "It's so important to tune out the noise and the unnecessary, and just focus on the people that you love because they know you better than anyone".
She continued, "I'm very happy and I think that you can tell". "So much to be grateful for, but mostly you", she wrote in August, 2017, a couple of days before her birthday. "I worked very, very, very hard and I got back to that place where I was genuinely happy and strong and ready to live again and see the world and, you know, bring in more attractive experiences".