She considered the possibility of her enemy running out of energy as her best option. As for encountering an ally who would help her, she doesn't count on that at all. This is why she continued to run around in circles in the same place, so that they won't go somewhere else where she might encounter a rank 5 enemy.
Meanwhile, Loki was still approaching the manifestation of the hammer. This manifestation has been in the same place, high in the sky, so reaching it has been straightforward.
There also hasn't been any ambush on the way here. He has encountered some enemies whom he killed. But no one has been lying in wait to take him by surprise.
All of these ensured that he was able to reach the manifestation of the hammer. But after he crossed the final stretch of the road to reach the wielder of the hammer, he found no one there.
