Why does a guy want to see his ex so badly?

well the questions speaks for itself, but I keep getting text messages from my ex saying that he wants to meet me for a coffee. and I agreed to meet... Show More

Updates:
I sent a text to him saying that I would be done with shopping at 3pm and we could meet at 3:30pm in the train station, and we could get a coffee and talk. and he said that he would still be in church at that time. what is that about?