“Hello fiancé…” the 25-year-old actress captioned a photo of Pena on her Instagram account Wednesday.
Though it's been less than a year since Vega and divorced her 36-year-old ex, citing irreconcilable differences, Covel doesn't appear to be taking it personally.
"Deepest congratulations to @alexavega and @TheCarlosPena!" he tweeted. "May your days be happy, lives be long, and your children, somehow, be tall. ,-)"
Pena shared an Instagram photo of his lady love wearing her engagement ring.
"My angel!!! @vegaalexa awesome road trip so far!!" he wrote.
Celebrity Couples of 2014 [PHOTOS]