The best way is to stop being the victim... and feeling like a victim... life is beautiful if you allow it to be... you are alive and therefore, can still have a chance to find the love that you truly deserve... be proactive... you have the choice to wallow in pain and misery... or pick up the pieces and enjoy the life you have now...
Better be single than in a bad relationship... like what Sophie said, he has clearly moved on and so you should too.. you deserve to be happy...