You might suspect that the reason he is fighting his feelings for you is that he fears rejection. But if you like him, there is plenty that you can do to help him along.
You can start to engage with him, and listen to him, make good eye contact with him, and become his friend. As long as you don’t stay in the friend zone if you want something more.
Let your body language show him that you are open to starting an honest relationship with him.