The 9 of Pentacles Lady exudes confidence, independence, and mastery over her own world. When a man steps into her realm, he admires, respects, and is genuinely impressed by her. Simultaneously, he might ponder, "What does she need me for? She has it all; I can't offer anything to her." This could lead to him feeling somewhat inferior and opting for a girlfriend who appears less perfect.
The 9 of Pentacles Lady brings to mind the Hermit. Nines in Tarot often symbolize solitude, and encountering the Hermit in a relationship reading might suggest the possibility of ending up alone (to be straightforward, based on my experience).
In the context of the 9 of Pentacles, conventional relationships may not be the norm. In terms of feelings, it indicates that he perceives her as wonderful, enjoying her company as a friend or a lover. However, viewing her as a girlfriend or a wife might not be as likely. Perhaps, consciously or subconsciously, the 9 of Pentacles Lady won't see the man in her life as an equal, leading to tension. Ultimately, it is the lady who holds the reins and commands her own life.