Allmusic.com which is usually pretty accurate, says "Love Is Pleasin'" is an original song by Eddie Delahunt. Here's his allmusic.com biography:

Originally from Dublin, Ireland, singer/songwriter Eddie Delahunt immigrated to the United States in 1989 and settled in Missouri. He established a musical career by playing gigs in Kansas City and released his first CD, Travelin', in 2003. While he initially gained popularity by performing traditional Irish songs, Delahunt began writing original pieces and working them into his act; Original Sing!, his first album of original solo works, was released in 2006. It was followed in 2007 by Triur.

"Love Is Pleasin'" is on his 2006 Original Sing album.

But my guess is that his first line was inspired by the Dubliners recording of "Love Is Pleasing," which was recorded as "Love Is Teasing" by many others.

Here's Delahunt's recording: https://www.youtube.com/watch?v=Tp6ySqGWlWE

Here's Delahunt's Website: http://www.eddiedelahunt.com/music.htm