Hi Kristina! Welcome!
My, or rather my fiance's, story is jut like Amanda's beau! He has his Bachelor's and Master's in Aeronautical/Astronautical Engineering (so sort of aviation) and worked in the cubicle world for a few years at Rolls Royce Aircraft Engines .... and dreaded each minute of his days. At 29 he threw in the towel at cubicle kingdom and joined the ranks of earning all his ratings, CFIing, and now a regional FO. And yes, like Amanda, I wish I could love my job like he does.
So I don't know how old your bf is, but the proof is in the pudding! He can march through it all as long as he's got enough determination and zest ... and it sounds like he does.