wow...that was more than i expected...yeah but is Kaoru really gay? Some ppl say he isn't cuz hes not really human and you also can't really be sure if hes male or female as with many other anime characters.
My friends like to discuss whether Rei harbored any feeling toward Shinji. It could just be motherly love cuz shes basically made with his mom's soul but it also could be more...
I'd just like to say Rei was probably the most confused characters in NGE. Givin' Shinji's depression and Asuka's Ego problem, Rei had it tough all the way through. She didn't know who she was, her memories were jumbled because of the dummy jumps, and she didn't know how to feel for Shinji. I like to think, Rei finally found herself in the end after Gendo tried to take her life to activate 3rd impact, and in that instance she had feelings for Shinji.
As for Rei being Shinji's mom, I like to just think Shinji's mom was the Evangelion Rei was using and any sort of mother effection you may have seen would be from memories Shinji's mom would have given Rei.
End note: I like to think this series is just confusing because when it was being made the creator was going through a horrific depression stage lol. Which I find funny, so anything not making any sense would be his feelings shown up on stage through Shinji. (Mainly the Ending!) And yeah... they have symbols (Christianity) in NGE, but as far as Religion is concerned, it's all based on what YOU want to think it means! Creator just put it out on the table as flashy effects with no real thought put in lol. Hence why so many people get confused as to "What did the end mean?)
Ja na! B)