Minecraft server won't allow others to connect?

I created a minecraft server (first time) so that my friend and i could play.
I opened my port, did the firewall what not, added him to the white list… Nothing seems to be working.
I've double checked my external IP, and even tried making it the server IP.
Why can't he join? The server is working fine for me…

Added (1). My ports are forwarded already.

Forward your ports.

Forward your ports.