Oh Man, Joe i feel your pain. My situation is VERY similar, and i've been going through some of the same thoughts/emotions.
Mine was as an entrepreneur, just putting too much energy into trying to make my career successful, and hence i neglected saying all the things i felt, spending more time (even though i REALLY wanted to) and the biggest one, not going to bed with her overnight (in fact if i made it to bed with her once a weeks it was a miracle).
I'm rooting for you, i know well the feeling!
M: 10 years, T: 12 years Me: 41, WAW: 38 SS:19, D:18, SD:7