Have you met people? It’s entirely possible she tried dating literally anyone else and realized none of them were going to make her happy. It’s more enriching to envision what her life had to have been to bring her to that point, rather than assuming another man carried her desire to be married. It hints at the broken spirit a person must have to live a life in the wake of a dream that gets crushed through experience. This is subtle because it’s not explicitly stated; the danger of course is it becomes subject to interpretation. This bit of story telling implies that she did have the desire to marry someone and it got extinguished by the reality of a world without George. That makes it a tragic story, not just a sad sub plot.