I think I know how you feel.
Although she's not with you anymore, you still want to protect her,
because you have feelings for her..
This is going to hurt, but she does not need you anymore (at least
for now, well maybe she may come back next time, but u would have
moved on).
And for a girl who doesn't need you anymore, and may despise you
for ur clingy-ness, there's only one thing to do : move on...
It's easy to move on...
for the first few weeks, it sucks.
then suddenly, it becomes slightly better
it helps to go out to meet as many girls as possible..
suddenly, things become much better
hope that helps...