A close friend of mine was dating a girl who had medical issues. He was considered a ‘top bochur’ in society, and he had no need to ‘compromise’. I asked him what motivated him to say yes to this shidduch.
He told me that his mother had Crohns; when she was dating someone, he terminated the shidduch when she told him she suffered from the illness. This person married a different girl, who was diagnosed a year later with Crohns. My friend learnt a lesson from this story that there is no escaping Hashem’s plan. If He wants you to have a sick wife, a sick wife you shall have.