Alexandria Ocasio-Cortez has confirmed that she’s officially engaged to her partner, web developer Riley Roberts. Ocasio-Cortez took to Twitter to confirm the scoop. She responded to another person on Twitter adding that Roberts popped the question to her in Puerto Rico “about a month ago.” The two first met in 2011 while undergraduate students at Boston University. They broke up briefly after graduation, but when they both realized they were living in New York they began their relationship again. Someone who clearly will be excited for the two is the lawmaker’s mother, Blanca Ocasio-Cortez. S…