Why does she get "spooked" in a round pen and why would you tolerate that?
LOL. I like you!!!!! Has anyone said welcome? If not, it's nice to have you here.
Loungeing is an art form. One can seriously mess up the relationship with your partner by not doing it correctly. I would suggest that you have someone who is experienced out to show you the correct way. It's nearly impossible for us to tell you what to do when we are not standing at your side seeing what your doing. It could something as simple as your body language or something worse like a pain issue. Judging by the quoted comment above which you made at the onset, I'd say you need some help with your leadership skills which will transfer over to the lounge line.