I found this one:

THERE'S A PECULIAR THING!
Words and music by Frank Leo
London : Francis, Day & Hunter, ©1898.
Sung by Wilkie Bard

First line: Oh, what a comical thing is love.
First line of chorus: There's a peculiar thing.

Both Oxford University and the British Library have the sheet music, but it's not viewable online.

I found an article about Wilkie Bard in The Irish Playgoer and Amusement Record, Volume 1, No. 14, Feb. 8, 1900, page 6, but it doesn't throw much light on the song.