Orihime and Ulquiorra first met during the Hollow Arc when she was in front of Aizen and his loyal Espada. At that moment, he told her that he disregards anything that involved human emotions, but we saw that as they progressed, he gain an emotion he never felt before, something that was hinted at, this being love. Maybe Ulquiorra began to have these emotions for Orihime in his final moments.
This magnificent cosplay of Orihime and Ulquiorra was posted by Inukami33, they have some really awesome cosplay of many different anime, if you like what you see go ahead and check it out. Otherwise be sure to share this to fans of Bleach, Orihime and Ulquiorra. If you want more cosplay of Ulquiorra and Orihime, you can find more here.