Poor Théo is probably trying to figure out why they don't want to roost with him when he's doing such a good job chasing them and pecking their necks. Often it seems like roosters have as hard a time figuring out their own behavior as we do. Maybe because we house chickens so differently than what their instincts are tuned for
I think Shadrach posted somewhere on this thread about roosters finding their groove at 18 months, which was accurate with Stilton, who's 2. As a young cockerel, he could be over-the-top, sometimes taking a running start to tackle the hens, sometimes ending up facing the wrong direction when he tread

If I was nearby, I'd pick him off the hen and tell him he was rude, then further deflate his ego with a quick health check up.
That tactic wouldn't work with every rooster, but Stilton absorbed the feedback. Between that and time to mature, he slowly learned to read the room. These days, it's so fun to watch the hens chase him instead of the other way around.
Great question about how he sees me. It's one I ask daily! I try not to act like one of the flock since I don't want him herding me or fighting me for control. Especially because he's affectionate. It would be less confusing if he were aloof, like our year-old roosters (Stilton was aloof at their age, so there's hope those guys will eventually want to hang out with me more, too). There must be some gray area chickens have carved out for their humans, because he doesn't treat me like a hen or other rooster as far as I can tell.