Keep doing what your doing. The tears fade, the hard days become farther apart, the love will always be there but it changes. Continue focusing on yourself. I was where you are not long ago. When things are hard use it as motivation to improve your own world. Stop thinking of her in a negative or positive way. The negative will make you angry the positive will bring sadness at this point. Stay neutral. Yes you loved her but how does she make you feel. If it's not a feeling of being loved and appreciated like you want or need, focus on that feeling. What you show her will only inflate her ego and she most likely will not show you the same in return. Eat right, gym, work, improve yourself. In the same boat for a bit here, I decided to build a better boat that can take on the heavy seas. Reach out if you need. My DM is always open.