Lena didn't have any idea in mind of what she wanted to wear for the engagement party. She had been too busy to give it much thought and thus ended up coming to the boutique with no idea in mind of what would look good or what kind of theme they should got with since Samuel didn't have any ideas either.
There was no problem in terms of style, color, and size. It was just an issue of picking the right color and style that would fit for their engagement party. The woman who had been assigned to help her pick out what outfit would look good was trying her best to help out, but with Lena not having anything in mind, she was coming across as a touch difficult to work with even though she was saying that she wasn't that picky. Unlike Samuel, she already had been previously measured for what size would be the best fit for her.