Twitter silence from Kendra, Holly and Bridget on Hefner's wedding news

What, no twitter "shout outs" congratulating Hugh Hefner on his wedding to Crystal Harris? Not even a peep from former paid live-in "girlfriends" Kendra Wilkinson, Holly Madison and Bridget Marquardt.
Is it because they already bashed Crystal Harris when she was a runaway bride last summer [2012]?