I realize that we all have disagreements in life, but when you purposely try to break someone down emotionally with words - that's called being a bully. Words hurt...words scar. When people know your past struggles and make the decision to continue to be a part of your life, they should never use their knowledge for power. It's not fair or right for anyone to throw verbal darts. There's a lot of power in words so think before you speak, and remind your self of the sayings, silence is golden, and, if you don't have anything nice to say, don't say anything at all.
Whenever I begin to slip back a little because of words that trigger a memory I have a couple of go to songs to get me back on track. Music and writing has been my best friend for many years - my salvation. So here's one that I hope lifts you up if you're having one of those days.
Peace, love & hugs!