Well, I wrote a huge document but decided to ditch it. Let's just say I get the distinct sense you are in the middle of a life lesson called, "Sometimes love is just not enough". I hope that lesson doesn't continue through the decades with this guy, as it so often does for so many women. Too often: The longer you stay with the wrong person, the more invested you become and the harder it is to move on, despite diminishing returns.
I TRULY wish you all the best, even though this may all come off as negative, or preachy. I just understand how powerful certain feelings can get, and how following them, despite what's best, can lead to a complete dead end and a lot of regret.