I'm sorry to hear that you're going through a heartbreak. Here are some steps that might help you deal with it:
1. Acceptance is the first step. Accept the situation and your feelings.
2. Be the better person and forgive.
3. Look at the silver lining.
4. Do not avoid the pain.
5. Take healing one day at a time.
6. End the connection.
7. Go out and socialize.
8. Share what you feel with a trusted person.
These are just some of the steps that can help you deal with heartbreak. You can find more detailed information on how to deal with heartbreak in this article.
I hope this helps!