file.rb

File.open("#{__dir__}/out.txt", universal_newline: true) do |file|
  file.each_line do |line|
    p line
  end
end

# gives output

# "I am a good boy \\r \\r\\n\n"
# "I am a good girl \\r\\n \\r\n"

irb.rb

2.1.2 :004 > "foo \r \r\n".encode(universal_newline: true)
 => "foo \n \n"
 
 

out.txt

I am a good boy \r \r\n
I am a good girl \r\n \r