AceShowbiz - Leah Messer couldn't be happier for getting engaged to Jaylan Mobley. When opening up about their engagement, the "Teen Mom 2" star said she feels "amazing" after her boyfriend proposed to her during their romantic anniversary trip to Costa Rica.

In an interview with PEOPLE, the 30-year-old gushed, "It feels amazing. I never imagined myself being here today, but I couldn't imagine myself being anywhere else." Her now-fiance, meanwhile, chimed in, "I can't even express how I'm feeling. I wanted this moment to be the perfect moment for her."

Leah claimed she "knew something was going on" ahead of the proposal, which took place on Friday night, August 19. However, the reality star admitted that she "had no idea it was going to be like this."

Jaylan, for his part, confessed that he was "nervous" but prepared at the same time. "I've been thinking about this for at least 2-3 months... I knew that it would be cool if we did it in Costa Rica - where we came when we first started dating," he shared. "A lot of people helped pull this off. I just consider myself to be blessed and lucky to be in her life."

Sharing photos of the special moment was Leah on her Instagram page. In some of the pictures, she could be seen flaunting her engagement ring. "Two souls, one heart [one red heart emoji] It's official!! [ring emoji]," she wrote in the caption.