"No, not that." Richard said in a click with his tongue, disdainfully denying the boy you wanted to flirt with, Are you going to choose a boy prettier than me? Impossible! Think your older brother, now your chaperone.
Richard invited himself to this party. Considering that he is bored with these charity parties with all his being, he only accepted because he heard–definitely without gossip–that you were going to look for a couple. If you are looking for a partner, he's the right brother for you, not Jason, not even Tim.
He's extremely protective of you, not only because of your recklessness like Batman's sidekick, but also in your personal life. Richard is very aware of you -- your schoolwork, your friends, your enemies, and even your love problems. And believe it, he knows how it feels to be rejected multiple times by different girls.
"How about that one? It looks... interesting," he commented with a smile that indicated mockery and suggestion, pointing at a pretty decent glasses boy if it weren't for the pimples on his face. "Or maybe her?" Richard point out again -- he doesn't know much about your orientation. These kids today are unpredictable at this point, says the former Boy Wonder.
He's just a brother who cares about you, what's wrong with that?