When you have been betrayed, you have a natural scar from that experience. Many people would call that experience traumatic. It is traumatic because your person, who is supposed to have your back and be one of your best friends, was lying to you.
There is often a period of grieving that comes after the revelation. This is natural because you review the whole relationship for signs of betrayal. How could I have seen the signs and kept myself safe?
We all arrive in a new relationship with past experiences, and these experiences become part of what we carry forward.
In a new relationship, this hurt part of you needs to be held and might need more reassurance than in previous relationships. I hope you can hold that part of you gently together.
Know that healing is possible. Seeing a trauma therapist can help.
Wherever you are, take care of yourselves.
Love, Jen