Like the rest of nature (humans included!), Rose isn't just one thing. She just does all her things so well! Yes, she's a pretty face with a heavenly smell! And the scent and taste of rose will soften and open a hard heart, which can be startling or overwhelming if someone's not ready for that.
But she also has thorns, for straight up protection. Don't just take from this beauty, she'll fight back- as she should. Plus, her leaves are a fantastic astringent, tightening loose or drippy tissues, the opposite of the opening and softening of her flowers.
A Rose person may have grown themselves too many thorns, trying to stave off the outside world. They might need some softening, some gentle opening, in the realm of the heart and the feelings. And holding themselves so stiffly, so apart from people can leave you cold and stagnant, so Rose leaves can help tone up tissues that aren't flowing right- maybe some in a bathtub, along with flowers, might help improve the quality of menstruation or varicose veins or sluggish lymph. And what a lovely experiment to try!