Really, it's just bad writing. That's why it doesn't work. The whole forbidden love aspect could have worked if they cited reason for why it was forbidden. They can't claim the lack of possessions thing, because how could any sane person claim their spouse as a "possession"... Now, I suggested to a friend that it would be interesting that their love was wrong for more moral reasons. What if you remove the wedding, and they are a couple outside the confines of marriage. That sounds like something that would be wrong in a Jedi code book.... And then when she gets pregnant, it heightens things.