Not too sure if it is a real situation or not, coz we see too many fake stories here in Sajha. Apologies for doubting, if indeed it is a true story. If it is, then here's my two cents. Marry the person that loves you, not just the one you love. In your case, it seems from outside that both love you. But your ex was okay with giving you up under pressure of work/study abroad. There is a good likelihood he could do the same again...right? Now the other person, do you love him? I am not asking if you like him or not. He hasn't been tested like your ex, so you cannot say he stands out from the herd, but he gets the benefit of doubt. I'd agree with most of the Sajhaites, choose the new flame. Your ex is back because he didn't find anyone better..he will probably leave you if he does. The other one gets the benefit of doubt.