To rebuild trust after a friends betrayal is possible with having a heartfelt conversation about the betrayal how it made you feel. Listen to their side then set boundaries. It's your choice to forgive them and if you do, with time allow them to slowly come back into your circle. Do this why keep you from being hurt again, just monitor th situation closely. This will also allow time for you to opt out totally from the friendship. How do you rebuild trust after betrayal?

Rebuilding trust is about engaging in candid discussions and setting boundaries. Forgiveness is not forgetting and priority should therefore be given to self-protection.

It's a very difficult situation. Personally, I believe forgiveness doesn't imply forgetting. Rather, it means to let go of the emotional stress that is weighing on you.

Trust after betrayal is steps that has to be nurtured as you build the relationship back to an healthy place. The stronger the relationship get then the level of trust tends to build and build. However it all depends on what direction you are trying to build. If just friends that no longer have anything against one another the the trust will take time the more they come together. Open communication is key.