Create an environment for intimacy throughout the day and see what happens in the evening.
For women, this often means just thinking about it. Think about the things that you DO like about intimacy with your spouse. Think about the pleasure you have received in intimate moments. Push negative thoughts away and focus on the positive ones about intimacy and your spouse.
For men, this means helping out with housework and childcare. It means finding ways to create some romance with a flower, a card, any way that says “I love you very much” rather than “let’s have sex”.