

A girl's appearance, her grooming, can be used to judge the man next to her.
A decent man looks after the treasure he has chosen and taken responsibility for.
If a man doesn't try, saves money on the girl, it shows that he doesn't want the best, that he doesn't care, that the girl looks pathetic, that he's willing to settle for what he has, has no perspective and no self-respect.
Don't expect him to change, to be "suddenly" generous. And if he does, it will be with someone else, someone well-groomed.