2. Are the both of you better off without each other?
Some relationships are toxic. They strip you of your time, energy and humanity, and sometimes a break up might just be the freedom you have been looking for. If that is the case with you, what you should be doing is walking in that freedom, not trying to get back in chains. If your ex seems to have moved on well without you and is doing much better, maybe you should step back and give him/her space. It is difficult but very necessary.
Not sure if your relationship was toxic? Read About 8 Signs of a Toxic Relationship Here