Question: how to know if a guy has moved on from his ex?
Answer: He's happy for his ex. ... 
He rarely talks about her. ... 
He throws away memorabilia of her. ... 
He labels himself as a single man. ... 
He's ready to start another relationship (with you) ... 
He radiates positive energy. ... 
He never accidentally calls you by her name. ... 
He talks about his past without getting emotional.