So by the time you get home, who even gives a fuck? You think back to how perfect you were together and get angry with yourself. Are you going to waste your time waiting for them to come running back to you?
If a long period of time has passed since your breakup, or if your breakup went particularly badly, your ex may have reservations about receiving a letter from you. Spend time with your dog. It's never one-sided.
Paint a picture; you don't have to be good at it. Rather than relying on criticism and low-blows, make sure that your words are constructive and productive. Why do you think your ex has a new girlfriend, and you're writing open letters to the girl who replaced you? What is there to gain from telling the new girl that you want her to take care of him?
Of course not. Being sincere is a sign that you have grown from your experiences and recognize the impact of how your actions affected the nature of your previous relationship, according to Aaron Lazare, professor of psychiatry at the University of Massachusetts Medical School, in his Psychology Today article "Go Ahead, Say You're Sorry".
The Biggest Mistake People Make With Letters The mistake I see people making time and time again is that they write a letter to their ex with the intent of winning their ex back right there and then.
You send it. Yes, you are.