I know only palatinate concept of "lieben" (that i would pronounce it "liewe") and the only distinction i can think off is the same problem chinese learners have with 爱 and 喜欢[https://mandarinbean.com/ai-xihuan/].

It is hard to describe, but I share the same feelings of the author when it comes to expressing love, affection or sadness. It's strange and hard to describe, even though we also use the SHG "lieben", but it still doesn't feel right if we are trying to speak in "Pfälzisch" about it.

Not only that, but it's odd, and it looks like they took and maintained the same sentiments we had 150 years ago and still use and share today.