Use memories. Do not let memories use you.
Find one thing every day to forgive the other person for. Don't let them know what it is...just forgive them and let it go.
Bring into your mind anyone against whom you have a grievance and let it go. Send that person your forgiveness.
Intimacy blossoms anytime you let down your socially acceptable mask.
Use memories. Don't let memories use you.
Accept what comes to you totally & completely so that you can appreciate it, learn from it & then let it go.