I think it's pretty said with a -leen ending. eh-VAN-jeh-line sounds really weird to me and eh-VAN-jeh-lynn sounds tryndeigh. I don't love it (I prefer
Eve and
Eva) but I do like it.
Eva and
Evie are adorable nicknames but
Evan is totally masculine to me, even as a nickname. What about using
Eve for a nickname? I don't know anyone named
Evangeline.
Evangeline PearlEvangeline CharlotteEvangeline IsabelEvangeline RoseEvangeline GraceEvangeline CamilleEvangeline HopeEvangeline AudreyEvangeline BridgetEvangeline ClaireEvangeline HelenaEvangeline IrisEvangeline JuliaEvangeline MaryEvangeline RosemaryEvangeline Sophia