I do best having my cockerels and then the roosters learn to avoid me, and never hand feed treats, or try to make them 'pets'. I want them to respect my space and get out of my way, so pecking at my hand doesn't happen.
Love on your pullet, and have your boy get out of your path!
It's not about picking him up, or giving treats, or chasing him around, it's about calmly moving around out there, and expecting him to focus on his job, which is to look out fro predators (not you!) and treat his flockmates well.
This youngster hasn't got it together yet, and has too little to do, if there's only one other bird. His agemate can't teach him manners either, because he matures faster than the pullet.
Cockerels raised in a flock with adult hens and a rooster will learn humility, and can be better behaved as adults.
Also, it takes experience to 'read' behaviors out there, and often it's best to only have pullets that first year.
Mary