He knows Nicole’s history probably better than most, and she is being sneaky once again instead of telling him outright that he has nothing to be jealous over. She has forgiven Eric for Daniel’s death, which is what Brady wanted for his brother from the beginning, but because they (Eric and Nicole) and being so evasive instead of sitting down face to face and talking this bs out, they are still choosing to sneak around behind Brady’s back, making it all appear shady and now that he’s caught her coming out of Eric’s room, he’ll be convinced they’re hiding their feelings from him. Brady needs to let her know he saw her, instead of waiting for her to tell him.