As long as the pullets and one hen can get away from his advances if they choose not to submit, they should be able to work it out fine.
If they are cramped for space or can't get away, and are not getting enough feed/water or are overly stressed without rest,
I would seriously consider keeping him confined to a wire dog crate in the coop/run/garden for most the day.
If he's acting too obnoxious and harassing the heck out of the girls, put him in a time out in the crate.
Play it by eye and ear....but always have a plan B.
If they are cramped for space or can't get away, and are not getting enough feed/water or are overly stressed without rest,
I would seriously consider keeping him confined to a wire dog crate in the coop/run/garden for most the day.
If he's acting too obnoxious and harassing the heck out of the girls, put him in a time out in the crate.
Play it by eye and ear....but always have a plan B.