That fight with Jeyne is my most hated in the whole game. On my first playthrough I spent 2 weeks tearing my hair out with it and only beat with help from a buddy, couldn't beat it alone. Once you kill the ogres and have to kill the archon there just seems to be suddenly too many adds to deal with at once and I always get swarmed and die then.
On my last playthrough I turned it down to normal from that point cause I didn't want to end up throwing my controller through the tv out of frustration