Emanko
A type of person who puts an extreme amount of effort, thought and care into their friends. The word comes from Croatian slang where it has the described meaning. It is derived from Eman (adj.; nice, friendly, helpful, approachable).
"She came to help me when I was sick, and brought me medicine and oranges." - "Geeez, that girl cares too much, she's a total Emanko lol."