Somersault Maugham was gay, so is Bill Murray gay? Or is his character gay? I would assume that a gay guy would write gay characters. I'm not saying Bill's character is overtly gay. Is he "on the down low"? Does that explain his actions with the prostitute and his flowery behaviour? I think it does. I think gay guys, when they write straight characters, they secretly believe they're gay and "on the down low." What do other lovers of this gay film think?
I have a feeling that this person is so confused that he or she wonders if everything is gay, holding off the inevitable and devastating question that he or she is gay. (To answer your question: No, Bill Murray's character isn't gay. Those were women in his life. He fell in love with one and then fell...nevermind).
I love the novel, and I've read critiques of it stating that if you read between the lines, Larry is probably Gay. I forget the arguments, but they made a good case.
I've also read the book and there is no case being made of Larry being a homosexual. Larry was described as sexually naive, which given the era the movie (and the book) are made it isn't too surprising. Between his relative lack of experience and his spiritual journey it's not difficult to understand why he isn't a walking hard-on that most movie goers expect today from a leading man.