are divorced men afraid to marry again?

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I met someone. He is divorced and we never talk about it--the reason, how he went through it, what his ex wife is like. I don't want to ask, and I want him to talk to me about it when he's ready. (Of course I have a lot of questions.) He said he wants to buy a beach house where we can live together. We are planning of putting up a business together too. Now I'm concerned.... is he afraid to marry again and just wants to "live together"?