Carter was visibly upset/jealous when the interviewer was directing questions at Oliver and getting excited about his kinks and sex appeal. Then when the interviewer threw Carter a question, he got all happy again. And he kept pushing the mic back towards Oliver and looked annoyed that Oliver wouldn't keep it there. The mic was loose and set between them and Oliver was trying to face the interviewer to answer the questions.
Carter also said that neither one of them is the dominant one and that they need someone to come in to fill that role, or something like that. So many examples of these possessive porn bfs holding back the bigger star of the two. I just want Oliver to go solo because I know he'd go so much further in scenes.