I like the JustJenny name. It's sort of saying: just love me for who I am... I don't need to do porn star antics or become a super general and direct this show. Also, I just always liked the name Jennifer.
Schnarch talks about healing the past in the presnet, and I think that is what's going on here. Interesting that he has always been the pursuee...afraid to make himself vulnerable by pursuing. Then you just happened to get pregnant, he happened to marry you...all the while, resenting himself for not taking more control of his life and taking it out on you.
I do believe he loves you ( remember that big declaration at your car) but he's feeling pressure and wants to get to that conclusion on his own.
Overall, he is becoming more vulnerable and self disclosing, but it's coming in waves rather than one big AHA experience that seems to happen in the books.
In time, I feel your marriage will get to a better place.