Dear Dar17,

I am so sorry for what happened to you. Can you look into therapy for yourself, even if your boyfriend won't? It would be really important to get some support due to the rape/assault from your ex. That is a trauma, and I'm so sorry for what you are going through.
The best thing your boyfriend could do would be to support you through this trauma, and I'm sorry he hasn't shown more concern and empathy for you.
No one should have to go through what you're going through. Sending you hugs.