I can't with the caption. "Having power. He's just realizing what it means to have them." How many people has he saved in the series, even when it has nothing to do with Tae.
The guy is his previous school bully and the girl was his crush they appeared about 50 chapters ago when him and Tae were out on a date, the guy talked shit about Tae and he got pissed and grabbed the bully but didn’t do anything then got punched and they left.
It's more humiliating to be saved by what you consider weak, than left for dead by that said weakness (which would just affirm their cruelty in their minds)