You know when you really like someone and you stay up til midnight to be the first one to wish them Happy Birthday? Well, that’s what Chris Brown did last night! Finally some concrete proof that Chris Brown and Rihanna are communicating again: He wished her a Happy Birthday on Twitter! Right around midnight last night, Chris wrote "HAPPY BIRTHDAY ROBYN!" (Robyn is Rihanna's real name.) Then the birthday girl, who was physically assaulted by Chris in 2009, responded "Thanks!" and re-tweeted his message. Another notable re-tweet from Rihanna: “We always ignore who adores us, adore who ignores us, love who hurts us and hurt who loves us.” Is she talking about Chris? They two were also hanging out at her birthday party last week; but no pictures, because of course, they made anyone that had a camera sign a confidentiality agreement. Hmm???