Clive Davis has been on a roll lately. Last week he opened up about his bisexuality and relationships with men while he promoting his book. He apparently wants to open up about other people in his life as well as he saved a chapter for Whitney Houston.In his book, Davis described the chapter about Whitney Houston, as “without a question the most difficult chapter” for him to write. He talks about how he discovered Houston at 19-years old and he was there for her during the ups and downs of her career. In his book, Davis addresses the rumor that Whitney Houston had a lesbian relationship with her former assistant Robyn Crawford.”I really saw her in brief relationships with men. I do write that