Ok ,so if your ex breaks up with you the day you got back and everything was”fine” while you were gone, and now he is already seeing someone doesn’t that make you a little suspicious that he may have been already seeing this woman and he broke it off to pursue the relationship with her?? You honestly should not waste your time waiting around, hoping something will change and he will come back to you………I would beware if he comes back to you because that could mean that you are now the rebound…..I don’t mean to sound so harsh but I have gone through this and think that you indeed need to love yourself enough to have standards and be strong. I just recently got out of a 4 year relationship and believe me it’s not easy. You need to be strong and show him what he is now missing out on!!