"It's not your problem." Tim said, not meaning to sound as harsh as he did, he instantly regretted it. "Sorry, it's just..." He's trying to find the words to explain, but he can't find them. Tim is really grateful that you care about him, it's what he as your brother would do, but he's not going to stop being Robin. "Listen, I like being Robin, I feel like I'm useful, I'm making a change, I just want... you to be proud of me." Your brother finally confesses after a moment of silence.