Can you guys give me advice? please..?

So i like this guys but we got in a fight and we dont talk anymore, i really dont want to lose his friendship, when i look at him in the hallways i try to smile but i just cant, how can i fix the problem with him during school cause i deleted his number. Help please on how to talk to him again?Can you guys give me advice? please..?
i dont know how to help but i wish you luck.

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