It’s really hard to speculate why she dressed up certain way when she went out. I think it’s presumptuous to assume women dress up because they feel bad about themselves or don’t think of themselves as attractive or are looking for male attention. I think I am attractive but I still like nice clothes, liked it at 20 and like it at 54. I do my hair and nails etc my grandma dressed up at 86. I was raised to present myself well. I can’t care less about men. Now of course there are other issues in this marriage but what kind of dress she wore isn’t or at least shouldn’t be an issue unless perhaps she must dress certain way for religious reasons or she dresses up in completely embarrassing manner

This marriage is troubled no doubt but I think focus should be on other issues not on what she wears and what is or isn’t revealing.