Thank you all for your considered replies. After a lifetime working with people I sort of think I can assess them OK and I am not too worried about the ownership of house/land etc although the concept of a pre-nup makes sense. I guess at the end of the day the ultimate decision is mine but I naively am looking for someone or something to say to me-"don't worry about the fear thing, just do it and make it work" or "what is there for you here"(Australia) or "you know things will not get better " and as my mum advised "go for it". Did you all have the same fears??.