Yes.. and no. Obviously she needed to tell him about Chris. But I think she acted too rashly in saying it was over. They could have worked it out. Well, I guess eventually they did.

How could she start a marriage by sleeping with another guy the night before. Although I don't believe that she told Luke in the right way (she should have been much more remorseful and upset) it wasn't fair on him for her to marry him in regards to the previous night. I don't think that I will ever be completely decided on my opinion of the whole L&L thing but if she had it would not have been fair on Luke, that I am certain of!