It all started when her longtime boyfriend, Chris Buckner, surprised her with a romantic getaway for their fifth anniversary on Thursday.
"When you think you're just going away for a night for your 5 year anniversary then find out your boyfriend made sure you have off from work but tells your friends at work to make it look like you're still on the schedule then he surprises you with a weekend getaway! Whatttt.. I can't believe he pulled this off," Cortese captioned a pic holding up her travel plans.
The trip wasn't the only surprise that Buckner was able to pull off! Cortese, 29, took to Instagram on Saturday to share a photo of her new engagement ring while kissing her man and toasting with champagne.
"I always knew I would spend the rest of my life with Christopher," she wrote. "But last night while we were walking on the Beach in Mexico he made it official!! We're engaged!!!!!"
The former reality store also shared a collage of her giant new rock. "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," she captioned the pics. "It fits my little hand perfectly… This still all doesn't feel real!!! I love you @cbuckner_ this weekend has been amazing so far."
She also posted a gorgeous beachside shot from their tropical vacay, penning a lengthy caption that paid tribute to her late father while sharing her appreciation for Buckner. "I can't believe this is all real.. what a weekend," she wrote, adding engagement ring, palm tree, and heart emojis. "This year has been really hard for me and my mom..I honestly haven't felt 100% happy since my dad passed away ..until this weekend."
"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," she added. "I love you chris and love that you brought me to this beautiful place for our anniversary/engagement weekend."