In the same situation. You feel like you shouldn't care anymore, he's moved on, you want to, you don't feel you can. Have you accepted it? Because that is the biggest and hardest hurdle. If you have one really close girlfriend, you need her lots right now. If you're keeping it in, don't. Just think, if it was meant to work, it would have. Don't be annoyed at yourself for caring, it's only natural. You will meet someone new. Focus on yourself right now, you don't need him or any man. This can only make you stronger, it hurts A LOT but you'll learn from it.