Perhaps. But given the fleet was under attack, we had more important concerns at the time. Once we were free from that they sat him down. They were quite literally briefing him when the Ayanami showed up. Should we apologise for being angry? It's only human nature.

As for Ayanami... no idea. Technically speaking, her original is probably your mother, Yui Ayanami, but in terms of personality there are considerable differences.

The one that lived the longest was the second one back when we were teenagers. She was around for 10 to 12 years, according to Akagi. I'd call that one the original 'Rei'.