Eric Johnson and Jessica Simpson engaged! Jessica shows off HUGE engagement ring

Jessica Simpson is engaged! Former NFL tight end and Yale graduate Eric Johnson reportedly popped the question Thursday and Jessica was spotted Saturday sporting a HUGE diamond and ruby ring at a promotional event for her new clothing line at a Dillard’s department store in Kansas City.

Jessica Simpson shows off her engagement ring at a Dillard's promotional event in Kansas CityThe ring is by Neil Lane according to People and appears to feature a large ruby solitaire.

“She was in a really good mood,” an eyewitness at the store tells PEOPLE. “She was very friendly and sweet. She signed autographs and seemed to have a great time.”

Could it be that the extremely unlucky-in-love Simpson has finally found her happy ending? I’ve outed myself in the past as a Jessica Simpson adorer so I for one hope that she has! Congrats Jess, but remember not to leave Eric alone around those man-stealing and fame-hungry mistress coyotes!

CLICK HERE to see more photos of Jess’s Johnson!

CLICK HERE to see more photos of Jessica at the Dillard’s promotional event showing off her bling and glowing with happiness!

UPDATE – Jessica’s dad Joe Simpson has chimed in his congratulations via his Twitter account, tweeting:

“So very happy for Jess and Eric. May they have a lifetime of joy and happiness.”

Photos: Jessica Simpson leaves her hotel hand in hand with her new beau (fiance!) Eric Johnson in New York City, New York on September 15, 2010. (FAME Pictures)