I know it's easy to say move on than to do it. I've been in the same situation before, except for 'he found someone else'. If there's no love and both of you think there's no future together, with all the fights, etc, why stay together again? It will only make things more complicated and maybe you'll end up hating each other.

Don't waste your time on him if you are sure that he doesn't love you anymore. I believe, you'll find someone better who loves you and deserved you I know it's hard to let go, but trust me, by the end of the day, you'll feel how relieved you're to leave this relationship behind!

Good luck!