hy has given you a great piece of advice there... Joining a club or society is a great way to socialise etc. It could be a sport that you are good at (For example: Tennis or Football/Soccer) it could be a game that you play (For example: Chess or War-Gaming) or it could be centred on a hobby (For example: A collection such as stamps or making something such as match-stick models).
Scotty: I particularly like Darren's advice about joining a club or society and just naturally see where it goes (in fact, this is something that I will also considering doing). Also, as another thought for you to ponder, I am wondering if there is any possibility that you are moving too quickly to meet someone else? Have you finished your "grieving" period? If yes, that's great. If no-perhaps you are trying to meet someone to quickly instead of dealing with your feelings first.--And if I am way off base with this thought, I do apologize.
Also, perhaps you could be trying too hard or coming off that way. Others tend to sense these things. I guess I'm saying that I think Darren's advice is excellent. Just slow things down a bit and when it's meant to be it will happen.