it's a big step, and it won't be easy....
but i reccomend ceasing contact with the ex for at least a few months. you're stuck on the same chapter of your story and need to move on from it to a new chapter in your life.
of course you'll miss her, but you gotta wait till the feelings of missing her are simply missing the friendship/hanging out aspect. you gotta untangle those feelings from all the intimate/relationship type feelings.
try rekindling and energizing you're current friendships beyond texting like the other posters said, but if that doesn't work, just go out to new places and hang out and make some new friends.... this will actually have a side benefit of helping you move on to those new chapters and maybe even get you some new adventures with other girls, which could only help.
Lastly, you're past the point of wearing a bedsheet cape and singing Journey songs in your room....
get outta emo mode, buck up, and go throw some game at some girls
