First Snooki... then JWoww... now it's Deena Cortese's turn!

The "Jersey Shore" alum is engaged!

Deena's longtime boyfriend Chris Bucker proposed on Nov. 18 during their five-year anniversary vacation to Mexico.

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"I always knew I would spend the rest of my life with Christopher .. But last night while we were walking on the Beach in Mexico he made it official!! We're engaged!!!!!" Deena wrote on Instagram alongside a photo collage revealing her sparkling engagement ring.

A little later, she posted another collage showing off her new bling.

"I felt like the other pictures didn't show how beautiful the ring was.. The pic on the left was me a little after he proposed after I was finished happy sobbing lol Christopher did such an amazing job picking me out the perfect ring .. It fits my little hand perfectly," she wrote alongside the second one.

"This still all doesn't feel real!!! I love you @cbuckner_this weekend has been so amazing so far ❤️," she added.

After it all sunk in a little bit more, Deena, 29, took to social media again to share her gratitude and offer some perspective.

"This year has been really hard for me and my mom," she wrote on Nov. 20. "I honestly haven't felt 100% happy since my dad passed away ..until this weekend .. Chris couldn't have picked a better time to do all of this especially with the holidays coming up and me and my mom being super sad about not having my dad here."

She continued, "I'm glad we are able to end the year with a happy moment.. I know my dad had a front row seat when chris proposed and I know he's looking down with a smile from ear to ear."

Congrats, guys!