彼氏・彼女 pitch accent


I have always thought in 標準語 those two words should always be 頭高, as
corroborated by several authoritative sources including NHK. But I have very
occasionally heard other pitch patterns. [This
one](https://youtu.be/dO8eR4zz3RY) sounds clearly to me like 平板: かれしが{LHHH}.
Why is that? Also, what about 彼女? Is it ever realized as 平板?

An additional question is: how are they pronounced in 関西弁? Because I talk with
people from 関西 a lot and they switch back and forth between dialects, which
makes it hard for me to be certain if their pronunciation is standard.




The heiban versions have been common for decades, but still sound more or less
frivolous or チャラい (more so for カノジョ than カレシ). A professional seiyu should be
able use the two pronunciations appropriately depending on the character being
played. See: [Are there any rules to the intonations they are discussing in
this video?](https://japanese.stackexchange.com/q/74609/5010)

I feel both patterns are in use also in Kansai-ben, but I'm not 100% sure.

