5. Eliminate the possibility of contact.
Once you internalize that your former romantic partner is no longer your ally, make an effort to not contact them in any way. No phone calls, no emails, no texts. Make sure he doesn’t appear on your social media feeds, either.
You’ll need to be strong and assertive to achieve this because he may want to establish communication with you, and you’ll have to explain why it’s not helpful or, if this doesn’t work, ignore or block him. Instead of texting him or answering his phone calls, try calling a friend or your new ally to remind you of why it’s not a good idea.