Most Helpful Girl
She's your ex and you had a bad break up. There's nothing "to do" with this girl because now she's thankfully out of your life. You learned some lessons I hope, not to give up the things you like to do for a woman. There's never a guarantee in relationships and you don't deserve to lose yourself in the process because that eventually becomes dangerous. Almost all of us have done it - given up friends and hobbies for the person we love. In the end, it's a lesson learned.
But, as I said, she's your ex now, and she lied and hurt you both during the relationship and after. Why does it matter so much if she's cold to you now?--she's your ex, what she's doing shouldn't matter anymore. You're still stinging from being hurt and you have nothing to take your mind off of things because you need to get yourself back to being you again. It's this point during break ups when you need to find the things that made you happy before you met this girl to get your mind off of her and rekindle the things that mattered most to you before. Find old friends, take up your favourite sports again, buy a few video games - whatever it takes to build back the guy you used to be that made you happy before. She was absolutely wrong for you, and she's acting in such a way to make it clear that you two are over because it sounds like you might be giving a sign that you can't get over her and want her back. If she doesn't want this and is trying to make it clear, she's going to get nastier by the day to make her point. Leave her alone, let her be part of your past and thankful that she taught you a few lessons. I know it's hard, but you will find a better girl out there that will make you wonder why you spent so much energy worrying about this one. She did you a favour by getting you to move on. Good luck! :)
Most Helpful Guy
I'm Going To Give You My Unlicensed Professional Opinion, You Just Gotta Leave Her Alone & Let Her Go, Do Things To Keep Your Mind Off Her, It Will Be Tough At First But Over Time You'll Feel Better...