Most Helpful Guy
So why do you have to get over him? Why don't fight for his love? He may not want a relationship right now, but he can't control how he feels about you, maybe he'll start to grow stronger feelings towards you, and decide he wants a relationship. If you let go right now, you certainly won't be with him. I know it's not easy, it's not supposed to be easy, but it's the price you have to pay to win love.
You should definitely have to stop drinking, and thinking about suicide. Go to him, tell him you really like him (don't say 'I love you'), and that you enjoy being with him, and wanna continue to be with him. He only said he didn't want a relationship right now, but never said he didn't wanna be with you. You still got chances, don't let them go away by drinking, take them, and use them to make yourself be with him.
If you love him, you'll certainly won't stop fighting for him. No one stops fighting for what they love.
Most Helpful Girl
Girl I feel you! Seriously, the exact same thing happened to me. It went on for a year trying to forget a guy who never really wanted me but just fun. The only thing that helped is time. Time time time.
Get your mind off of him. Pick up a hobby, hang out with friends, talk to other guys. Just keep yourself busy.