1. I think gain new friends and enjoy life.
2. Go travel the world. If it's too expensive, go to different places here in Malaysia or Asia. Places you haven't been before.
3. Pick a new hobby like Photography, sports (join marathons/swimming, badminton, gym membership), fashion trends, learn how to dance Jazz or samba, cooking lessons, piano/guitar etc.

Anything that will keep you busy and yet enjoyable at the same time. Deep emotional attachment to one person is tough to erase. It leaves scar and all. But even though scars is there, when your laughing your hearts out, enjoying life and stuff like that, you'll forget about the scar and just continue living as if the scar is just the humor of the past. Gosh, I'm speaking from experience here.