Feeling like texting my ex

I broke up with my ex boyfriend in last year. I caught him with another woman and he has been with other women as well. He used a woman in order to gain custody of his son in court and now she's pregnant as well. Later I found out he's making babies using different aliases telling people false names in order to avoid child support. He marries the mom for a year, divorce her, and file for custody. I later learned he has a reputation of doing this across different States. During court proceedings he has a different woman to look good for the court in each case. I broke up with him because all he wanted was a baby. Idk why I'm feeling like texting him. you suppose to move forward not backwards. It's like I miss him when I don't