He may miss what it was like to have you in his life.
If a decent amount of time has elapsed since your breakup, his mind may have gotten over the negative aspects of the past relationship and is now focusing on the positive aspects of it.
People will often respond to an online dating post that gives them a really good idea of what a person’s personality is like and what their life is like.
When you write a descriptive online dating post that gives people a really good sense of what it would be like to have a conversation with you or even hang out with you, you will most likely get people to respond to you.
People will often respond to an online dating post that they can connect with and find commonalities with.