Marksmanship, IMO, is a discipline, very similar to your martial arts. In martial arts training, your instructor can show you all the moves, point out mistakes your making, but in the end, the student has to learn, mostly by repetition. If you really want to learn how to fight, then all the moves in the world won't help much against a person who fights regularly.
IMO, shootings much the same. If you want to be a good shot first you need to shoot.
As far as a Matt coaching you, it might shorten the process a bit, but you still have to go shoot.
So, there's the wrong way, the right way, the army way, the Graybeard way etc.
As far as "lessons" or "training" is concerned, hey, if that's the way you want to do it then go for it.
Quite Honestly Matt, while it's none of my business, I think Heather is trying to tell you she wants to spend some quality time with you doing something you love to do.......I could be wrong of course, but I don't think so...... maybe it's not so much about her as it is about you. That's a good problem to have my friend.