Leonardo DiCaprio put a ring on girlfriend Bar Refaeli's finger?

With Sunday being Valentine's Day, it would have been the perfect opportunity to get down on bended knee.So the question is, has Leonardo DiCaprio proposed to his on-off girlfriend Bar Refaeli?If the shiny gold ring on her engagement finger is anything to go by, it could the case. Sign? Leonardo DiCaprio's on-off girlfriend Bar Refaeli flashes what appears to be an engagement ring during a