Has nothing to do with strong relationships. Can't count how many times I've seen people pair Goku up with Vados or Caulifla. The latter, they had a few episodes, tops. Some of which were when she was fused. With Vados, they've barely interacted. Then, to circle this thing back to Damian, you have shippers of Damian and Marinette of Miraculous Ladybug, when they've never had a crossover.