Hello Friend, Good that you are seeking a help here. Any relationship break up will take hard time to accept and adjust with reality. Your boyfriend may be going through that transition phase and trying to use you name as a reason for the failure. When you go behind such emotional disturbance, negativity will increase in mind. In such suitations don't think of hasty decisions, instead ask for help from someone you trust.
Be firm if you have taken the decision right. Focus on the next steps in your life. Take a counseling guidance to handle such emotional issues and disturbance better.
Next Steps
Go for a counseling support directly or online. Feel free to reach out to me online.