I broke up with my ex a year ago - he was a horrible, abusive man and it felt very raw for some months. I've been chatting on and off to a man who seems lovely, but I've always refused a date to as I wasn't ready. I now thought I was, and we arranged a date for tonight. But today my self preservation has kicked in and I absolutely do not want to go. I've hardly slept last night with worry and I know I have to cancel. How do I do it whilst being nice and without bringing up the drama of my past relationship?