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Tough luck, Leonard. Big Bang Theory star Kaley Cuoco and her boyfriend of two years, Karl Cook, are officially engaged!

The couple took to Instagram to announce the exciting news by sharing a heartwarming video of the emotional proposal.

A post shared by Karl Cook (@mrtankcook) on

In the clip, Cuoco is fighting through tears and laughter as she admires a pear-shaped diamond engagement ring on that finger. She shouts, “We’re engaged!” But Cook is quick to remind her that she has yet to give him an answer, and Cuoco enthusiastically obliges.

Cook captioned the post, “Who knew my prior post was oracular. Well after nearly two years I finally got up the courage to ask her to marry me. This is the best night of my life and I think the video shows it is the best night for kaley as well.....if she said yes!!!!!”

Cuoco also posted the proposal clip on her account, writing, “Still crying every part of this night has been perfection just like you @mrtankcook I love you forever!”

Oh, and if you, like us, tried (and failed) to pause the video to admire Cuoco’s new accessory, have no fear. Cook even shared a close-up shot of the ring on Instagram, and it’s major bling envy (if you like that sort of thing).

The cherry on the engagement-announcement sundae? Cook shared a video of the newly engaged couple dancing to Ed Sheeran’s “Perfect.”

A post shared by Karl Cook (@mrtankcook) on

He wrote, “In life, there is nothing like dancing right after getting engaged. The purity and grace of the moment are inexplicable, it is truly as though life were a balloon bouncing on the smoothest zephyr. Honey; all I want is to be a balloon bouncing, bobbing, and flowing through life together. You are my everything @normancook.”

The couple met shortly after Cuoco split with her ex-husband, Ryan Sweeting, in 2015. Cuoco and Cook confirmed their relationship in early 2016.

We’re not crying, you’re crying.

RELATED: Hallelujah! ‘Big Bang Theory’ Star Johnny Galecki Is Returning to ‘Roseanne’

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