Hun, it's only been a couple of days so give it some time. Know you did the right thing by completely walking away and moving on with your life. Yes, sometimes we come across people in our lives that genuinely rattle us leaving us feeling out of sorts. You are doing the right thing by focusing on yourself with working out and appreciating what you have accomplished for yourself. Give your mind time to readjust, and you will where you can get back to looking forward and onward better.