Following a whir of speculation after Waterhouse was photographed in London on Monday wearing a diamond ring, a source has now confirmed the couple are indeed set to be hitched. "They are engaged. They both want to be married. It's important for them," the source told People magazine. "He's so ready. His relationship with Suki is incredible. He feels very lucky.". The couple's reported engagement comes after singer/actress Suki, 31, confirmed in November she and The Batman star were expecting a child while performing at a music festival in Mexico.