I don't know you or your situation so not sure whether this will be accurate or helpful.
When I did an assessment centre earlier this year, there was a guy that I would probably describe as "intense" in my group exercise. He was very controlling and dominant and I don't think it came across well. We were supposed to be doing a negotiations exercise but he just refused to give the other side anything (even things our client didn't care about), then when we go to the things our client cared about the other side were reluctant to compromise because they'd already compromised on the stuff we weren't supposed to care about. He didn't convince any of us that it was a good strategy, just insisted to the point where we gave in because we were wasting our entire prep time arguing with him. In this situation, the feedback could be "intense", "overbearing", "controlling", "unwilling to listen to feedback", "unwilling to compromise", "puts own ego before client needs" etc.
My mentor at a different firm told me that when they're interviewing/networking, they use a "long plane journey" test. Basically, could they cope with a long plane journey with this person and not go insane. We all know that the worst person to sit next to on a plane is someone who just does not shut up the entire time and goes on and on and on and on for twelve hours talking about absolutely every single little thing that pops into their head. Perhaps, (probably from nerves or a genuine passion for the firm), you were just talking a bit too much about everything? In this situation, the feedback could be "intense", "unable to focus on one task", "doesn't understand professional boundaries", "unable to work independently", "unable to filter what they'll say in front of clients", "would drive me insane if I were stuck in an office with them until 2am" etc.
