How long were you together?

Since you are okay with not having your own children, I think the biggest barrier in your relationship seems to be that he didn’t want to live with you (or anyone else). Would that have been okay with you or would you eventually want to move the relationship forward to living together and maybe eventually marriage?

If you want to live together eventually and he doesn’t, the relationship was bound to break down sooner or later, and given you want children, it’s better to happen sooner than later so that hopefully you can meet someone who wants the same things as you, but take time to get over this relationship first. You’ve only been out of contact for a week so it’s completely reasonable that you’re still feeling a pull toward him because you still hold that attachment to him and that takes time to release.

So maybe think about it… especially if not living together was going to eventually be a deal breaker for you, then it’s better you broke up and it’s better to just allow yourself to gradually detach from him as you’re able and move on. I wouldn’t advise staying friends with him or talking to him though until you feel you’ve let go of him.