In a summer of breakups, it's nice to see that there are some couples that are still together. One such couple? Agyness Deyn and Strokes guitarist, Albert Hammond, Jr.! "They just got engaged! It happened within the past few days," a source close to the couple tells Us Weekly. "They're really sweet. They basically haven't been apart for more than three seconds in the past two months." And the bride wore skinny jeans…