What should you do when the person you have strongs feelings for shows no interest at all? 🤷🏼‍♀️🤔💔

So I’m in a bit of a pickle where I met this guy & he did the cutest romantic movie thing. He chased after me when leaving the restaurant he worked at and asked for my number. ♥️ in the beginning we have had a couple memorable, passionate nights together. After that, we sort of drited off and I was upset because why would he go through the trouble of meeting me just to have a fling..? 🤦🏼‍♀️ All I ever do is think of him. He always says he’s too busy to be in an actual reationship and we should just be friends. I guess it was too good to be true and he’s not the guy I thought he was. 😕