I wouldn't describe myself as a Ben fan, though I loved him in BB and can't wait to see more of him on TV. He was my favourite from BB11 by a country mile. What's most interesting about the Ben/Mario dynamic for me is that Mario had a very unconstrained crush on Ben and made that painfully and embarassingly clear. All of that is fine and understandable and can be explained away by Mario's age and Ben's appeal
The problem was Mario's inability to deal with Ben's very gentle, clear and sensitive confirmation of his lack of interest in Mario. Had Mario been able to let go of it, Ben fans wouldn't continue to discuss it. But Mario was never able to get of it; it seems he still can't. His own actions and reactions in the house destroyed his chances and sullied the impression he made. To blame the object of his affections, whose identity for the purpose of this discussion is incidental, is churlish, childish and extremely counter productive.