Most Helpful Guy
Aww. I guess I felt love in your question. How much 'perfectly rational' is it? If you really do feel there's no future, this would work :
1) Hangout with the best of friends with whom you don't remember him (trust me this works)
2) Indulge into activities where you need to talk, meet new people & learn something new.
Basically, I'm using the only weapon that I found which actually works- TIME.
Time changes everything.
The more you think about him, the more you remember your past, the more you'll suffer.
Wake up tomorrow and forget every single thing that happened before sleeping. Like you've just woken up after sleeping for years. Go! Get some new work to do, pursue your passions.
It's only you who can force yourself to do something. Once your brain gets that in mind that you've got to do this & that, it'll subconsciously think about how to improve.
There is no need for you to think about how to break the relationship or something, do what I say, eventually your relationship would be just a 'name' which you can erase with an eraser.
Most Helpful Girl
Time is the healing of everything. My boyfriend who I am still in love with broke up with me for the same reason, because the relationship was getting harder and he couldn't handle it anymore. It has been 4 months now, we kept in touch. I am asking you to think twice about it, you might lose someone who you really love. Time changes everything of course, but it can make you realize that you have done a big mistake. Try to work it out, when you get tired, learn how to rest, not how to quit.