You need to create that notion in his head that love and fun are one in the same with you around. He links fun and good times to you while you increase your chances of nabbing a man for the long term. It's basic logic that the more he enjoys being with you the harder it is for him to walk away when there are no bad feelings or awkward small talk. Love should be fun, not a complicated measure or anxious waiting game for I love yous and tingly feelings. Love and fun are one in the same with you remember?
Give him some excitement outside the traditional fancy restaurant and wine. Experiment with new dates you have never done before. Go to a roller rink, football game, whale watching excursion, a day at the beach, watch the sunset an hour before to talk before it starts to fall. Dinner, wine, and a boat ride at dusk is a much better date. Now love and fun are one in the same with you.
A final touch can be something silly like Twister at your place, watching SNL, a paintball war, ice cream at Baskin Robbins, or finding constellations in the night. The point is to create more opportunities to make him laugh and enjoy you. You two have time to connect with conversation, smiles, and new emotions swirling inside. It's a nice feeling to find that one person to share all the good times with. When love and fun are one in the same with you, it's all smiles from less bad days.