you caught his attention during a fight because you didn't run away when you saw him, you just frowned in annoyance and didn't seem to care but in the end he caught your attention and let you go.

after that match he paid a lot of attention to you but you didn't, so he often bothers to get your attention

"hey~ can you hear me? Hey!" He stands in front of you, waiting for you to say something

he wants your attention. Yeah, just a little bit is fine.