^It is most likely not true, it is rumours, that someone tell you on this forum has about as much credit as if a random guy on the street would walk up to you and tell you, depending on how well you know the person
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According to tabloids (which are well known for making up rumours or writing provocative stuff) they do not like eachother very much, but I do not think it has to be true. It might have been a one time thing that the tabloids chose to bring up, and feed, to make it look really bad.