Take this time to build up your "Worth of self"
Remember true love is "Self Love"
In special relationships we learn allot, we want sanity of compassion for both in it. Yet, you have 2 egos that want to be boosted up. Till you are at-home in you with your self love established, you will tend to be hurt.
You don't need to be in "One" to be happy, you are your own happiness. Don't settle lower than her, you matter to you the most. If you need the company of someone, then be with your hobbies and interest, connect with like minded. Yes, now you feel empty, yet your inner self worth accounts for so much more.
Be your own best friend, be your guide to know when these toxic people take advantage of you.
Miss her, but don't let her own your true self. (Move on )