Mary Magdalene and another Mary followed them to see where they took the body of their Lord. They were probably afraid of them and were sneaking around tombstones. We don't really know. Perhaps they were all united in their purpose. Nevertheless, this Mary was feeling territorial about the body of her Lord. It didn't matter how many pounds of spices the men had brought, they weren't her spices, done her way.
She was a special disciple from whom Christ had cast out seven demons. He knew she was devoted to Him, but why did He appear to her first? Perhaps His other disciples would still squabble over whom He loved most as shown by the foot race to the tomb (John beat Peter) and previously recorded arguments over who would sit closest to Jesus in His kingdom. After all, this was before the coming of the Holy Spirit. She perhaps was the least likely of all His disciples, but still chosen for this honor as recorded in His Word. Perhaps her gratitude for His saving touch was the greatest.
Recognize His voice. He speaks in His Word. The Holy Spirit imprints it upon our heart so that we may follow Him. Be grateful for His saving grace.
And by the way, as I keep repeating, early writers say that Joseph of Arimathea watched over Mary the mother of Jesus and Mary Magdalene during the days of persecution and helped them escape out of the country, strange friendship bonds that could come about only in Christ and Christian fellowship.