I agree with EmmaStar —Person B feels like a dream come true to Person A. Everything they ever wanted and more.
Yes, the nines often convey a sense of solitude, mirroring—when matched with the majors—the Hermit's intentional seclusion. It's important to note that the Hermit's solitude is not just desired and voluntary; it's a time of contemplation, not loneliness. This solitude allows for a deeper connection to the world, oneself, and the divine—moments we all need alone. I believe each of the nines reflects this.
The lady in the 9 of Pentacles is content to have that time alone to luxuriate in her rich surroundings, enjoying them all to herself. The 9 of Wands features a solitary soldier focused on duty, relieved when help arrives, appreciating the lack of distractions. Even the 9 of Swords focuses on her own anxieties and nightmares, needing time to contemplate them without interference.
Regarding the 9 of Cups, I'm not familiar with the Druidcraft image, but in the Waite deck, it depicts the host or guest of honor just before other guests arrive. Cups are filled, indicating popularity and love. At this moment, the person is contemplating their blessings—friends and family—and is content and delighted, eagerly anticipating the fun evening with everyone. They exude a sense of smug happiness.
In terms of your question, Person A might be stepping back from Person B for a moment, thinking, "I have my dearest wish! The love and friendship of Person B make me so happy and positively smug about it! I can't wait for Person B to arrive so we can party all night long." That's how they feel. 😄