@dysert I am much like you. I live inside my head most of the time. Like right now...hubby is laying on the couch watching ESPN post-game and I'm over here typing away on my laptop. Now, honestly, I love my husband more than I could ever put into words, even though we are two VERY different people, and I mean VERY different. I was rather ambitious (not anymore, I'm retired completely now), he sorta just goes along with the flow. He's MUCH more emotional than I am, you have to work pretty hard to get much of a reaction out of me. But, we're perfectly suited to each other. He's Mr. Social, very involved at church, parking lot security, men's group, has a whole bunch of stuff going on, has a nice side business going doing custom carpentry. I'm friends with just a few people, don't go out much, don't like being in large groups. But, I go places and do things because I know he wants to do them and his happiness is important to me. He puts up with my silence and geeky interests because my happiness is important to him.
Since I was in a car accident last spring and got hurt pretty badly, he has taken care of me, driven me to every doctor's appointment, physical therapy appointment, has never given me one bit of grief about not wanting to drive anymore (I got sideswiped at 45 MPH by some dumb broad who claimed she didn't see or hear my race red Mustang). My car was fixed good as new, but it's uncomfortable for me to drive anymore due to the injuries.
I think the two of you need to sit down and have a real conversation. I really can't see throwing away 38 years of marriage claiming "incompatibility". I'd buy that after a short dating period and shotgun marriage but not after a 6 year courtship and 38 years of marriage.