I'm still into my ex after 3 years...?

Well if your close friend was a real friend she would leave him alone and understand that you really have feelings for this guy. Thats crossing boundaries. Follow your heart. If you want to be with him and he wants to be with you then go for it. Dont let no one live your life for you. First you have to see where his head is at. I doubt you wanna put your all into someone that doesn't feel the same about you. Good Luck!