He’s putting out feelers to see if you’re still interested in him, but he’s not yet offering you anything other than to be one of the women he texts, collects photos from and dates. So don’t misread his message as one of reconciliation. He’s definitely missing you, but it’s totally your decision if you want to respond to him now that you’re not his girlfriend any more.
He’s probably dating other women, and he would like to date you, too, although not get back together in the complete way you were together during your monogamous relationship.
If you’re interested, all you need to do is respond. But it seems from your post like you’ve moved on, and that playing around with someone who’s not interested in giving you a full commitment (since he was the one to break off your relationship) is going to be a waste of your time.
Ultimately, whatever message he is sending you is way less important than what you want for yourself in a man. Keep your eye on the ball. 🙂