There's something romantic happening here. First, they clearly did the Grind the same day, probably the same hour, as Sam, Misa, and Luke— but instead of taking a picture with the group, they did this. They chose a song by the same artist and posted it within a minute of each other. You can tell from the compositions that they stood side by side when they took the picture of the same view (Gavin on the left, Ryder on the right).

...right in the back of his net! I know!