No. Aizen doesn’t fall in love with Orihime. Aizen had only interacted with Orihime a few times and during that time Orihime showed fear and Aizen showed no affection towards her. Orihime was kidnapped by the arrancars simply because Aizen was interested in her powers.
Aizen Sosuke presented himself as an observant and gentle captain before his betrayal and rise to Hueco Mundo. He addressed his subordinates by their first names and was particularly friendly to his lieutenant, Momo. For her part, Momo seems delighted with her captain.
And to encourage Ichigo’s growth, Aizen kidnapped Orihime so that Ichigo would feel the urgency to grow stronger. The other, less significant (from Aizen’s point of view) reason is Orihime’s ability, Shunshun Rikka, which can negate reality. Aizen was curious when he saw Orihime dressing wounds with it.
During Bleach’s Arrancar arc, Ulquiorra kidnapped Orihime Inoue for Aizen’s own purposes, and Ichigo was powerless to save her.
Almost at the end, Ichigo personally chooses Orihime to help him in the final battle against Yhwach, and while Yhwach defeats them both, they put on a good show against him. 10 years later, Ichigo and Orihime are happily married and have a son named Kazui.
Eventually, Grimmjow rescued Orihime to repay her for healing his arm. Orihime followed him for a time, even healing Ichigo so Grimmjow could have a satisfying final fight with him. Fans love to think of Grimmjow and Orihime as a more sincere couple and here is fan art to prove it.
Eventually, Bleach ended up with Ichigo married to Inoue Orihime while Rukia married Renji Abarai. The pair shared fans, but that was just the beginning.
To summarize his goal, Aizen wanted to become the new king of souls, and it took years of careful planning and manipulation to get close to his goal. But like any plan, his wasn’t without flaws. If it were truly perfect, Aizen would never have been defeated.
Orihime’s name would prove highly significant.
Chizuru actually does, too, when I think about it. Anyway, Orihime’s name is good not only because of the “princess” part, but also because Orihime is the daughter of the Sky King (=King of Souls??) in the Tanabata story (see below).
Hate and Jealousy, Orihime’s Dilemma.
Aizen remained true to his curiosity, keeping a close eye on Isshin and Masaki and thereby found out about Ichigo when he was born. Curious that Ichigo is a special case due to his mixed heritage, Aizen decided to support Ichigo’s development for his plans. To this end, he had Rukia Kuchiki stationed in the city of Karakura.
Her most incredible power is the Soten Kisshun (Double Celestial Reflective Shield) technique, which Orihime would use to summon Ayame and Shun’ou, and they would form a shield around an injured person. The shield reverses time, returning the injured person to an earlier state, effectively healing any wounds.
Orihime Inoue (井上 織姫, Inoue Orihime) is the Captain of the 1st Division and the Captain-Commander of the Gotei 15. Her lieutenants are Shūkurō Tsukishima and Meilō Aomori.
In the final chapter, Ichigo Kurosaki married his old high school classmate and friend Orihime Inoue, and together they had a son named Kazui, who inherited his father’s Soul Reaper power.
After dealing with Opie, Ichigo finds out that the Wandenreich are attacking Soul Society. When Ichigo is defeated by Yhwach, Orihime repairs Ichigo’s weapon so he can face him again. Ten years after Ichigo’s victory, she marries Ichigo and has a son named Kazui.
In the series epilogue, ten years after Yhwachs’s defeat, it is revealed that Rukia has become the new captain of Squad 13 and has married Renji, with the two having a daughter named Ichika.