I disagree with divine, it's very possible to feel connected to someone, even over the Internet.

What kind of hobbies or activities do you enjoy? Spending a lot of time working on those and making yourself the best possible person you can might help you forget about him. Try to focus on happiness from internal rather than external sources.

And keep putting yourself out there. You can find someone who isn't as mean and cares more about you.

Best of luck