Play It Strong.....Even though it may be tough

My girlfriend ended things with me just over 3 weeks ago, still cannot believe it. I have been through the denial stage, and now I am trying to convince myself that I can deal with it. and yet, I still hold some hope. What to do? Don't chase up on them, she told me she felt trapped by me and that i was too dependant on her. So, i have told her we can meet up for a drink, if she wants. Play it happy (even though it may be tough to do that in front of them and when you say bye at the end of it), but stay strong. Dont ring, dont email, dont do anything. Let them see that actually, you dont need them. What fools they must be!! Letting go of a good relationship because they want to be alone. Give it time