Lucara - the video makes me smile. All that noise.
Horses can be very affectionate. It is only a question of how you relate to the horse and how the horse trusts you.
My girlie Mare and I are presently going down the route of minimal restraint. I try not to hold onto the lead rein. Mostly she does what I ask her nicely to do. If I goes this way, then so does she, and if I goes that way then so does she. No shouting, no tugging, just for me to ask her to do what I want her to do. And when from time to time she hesitates, then I ask her again - nicely. Mostly she'll do it. When we are standing and talking to folks, there she is standing and listening but she don't say too much. Without a doubt she's the quietest female I have ever met.
But it means I have to let go and hope the huzzy doesn't run off to teach me a lesson as to who is boss. The secret seems to be that we both think we are the boss. Just like me and 'Her-in-doors'.
I do wonder how I'd get on with a mule. Oh my.