No — you should hold off, and wait. You’ve already contacted him and let him know you’re single. He’s responded that he’s out of town but would like to take you out when he returns. The ball is in his court. If you text him again it may appear needy, and I know you don’t want that! 😉 Stay busy, play the field since you’re newly single, and don’t put all your eggs in one basket. I hope that helps! 🙂