I very often feel NRE for things other than falling in love.
When I started my last degree, I can remember walking on air for weeks. And the same when I finished it.
I've had it over jobs.
Very often over platonic friendships.
And also with falling in love.
I have tried to take out and look at the feeling to see if I feel it differently when falling in love and I don't. It's pretty much the same thing to me. Lots of giddy excitement followed by the work and effort of trying to make the new bright thing in my life work.
I've sometimes wondered if that is part of the reason for me being so contented with being single for so long. The need for that sort of feeling in my life can be fulfilled whether or not I'm in a relationship.