I would personally give him a chance ..... but then I am a bit of a softie.
My cockerels are feeling the effects of Spring and fighting each other, though not aggressive to us. Your lad if young and in with another cockerel may just be feeling full of gusto as the days get longer and being a bit bossy due to the other male. We had some pekin cockerels who were similar last spring but they are fine now.
If he does turn out to be aggressive I would get rid though. My father has a Wyandotte cockerel and he is a wicked bird. He can rip holes in your jeans and fetch blood and has to be locked away if my sisters children visit. Mine fend him off and find him quite amusing
... mad as they are. He will let my father pick him up and cuddle him but does not like visitors. I would have put him in the pot a long time ago.