It’s a difficult thing to know someone loves you before they know it themselves. He must reconcile with it all the same. It would be worse to have her realise she loves him and disregard it anyway. Every day he worries that it has already happened, that she has deemed their differences too vast, insurmountable. If that’s the case, then he is doomed to spend the rest of his life thinking she’s wrong, and there will be no way of showing her.