Regretting

What you gonna do if you know that someone in the past (who used to love you) come to you and tell you that he/she wants you back to his/her life (loving him/her again) ? He/she never disappoints you a lot. He/she is nice. While you had dropped much tears in your present lovelife... While you feel you don't deserve him/her again... This is what I regret to. Wish you would find the better one.