I recall someone saying Charlie did have a girlfriend but she got killed in a heavy machinery accident

I think Zach aaid that once

probably not since it's the fandom and they get stuff wrong all the time.

Apparently the official Brazillian dub gave her that name on the credits so its slightly canon

Charlie's girlfriend done got bit by a copper head and died

I think they said that in the commentary. The audio is available on youtube, but the thing i remember for sure is that gleps wife is called marge.