On St. Valentine's Day, we want to be close to the ones we love. Researchers from Germany, France, Italy, the Netherlands and the UK are testing whether one day that special person in our life could be a robot. Experiments have shown that children, for example, can become extremely attached to a robot playmate, but can the robot in turn can develop a bond with a human being? Could we one day expect robots to develop a behaviour that resembles human attachment? That is the question being explored in the ALIZ-E project