Are you a mess or the best after breakups?

Alright so…I’ve just been hit by reality that things between me and a particular person are completely over. I found out that he bought a ticket to Malta to see a rebound girl…(that’s what I get from Facebook stalking). I thought I was fine…we all get curious once in a while…but boy I shouldn’t of done that. I cracked! Cried all night. I thought I was stronger than this. I know he wasn’t made for me; but my possession over him is so strong…and it really upsets me. I start thinking about all the bad things he’s done and still I just have a really hard time picturing him with someone else…I feel stabbed.

Basically, do you ever beat yourself up or miss someone who was never meant for you in the first place? And do you feel like a mess after a breakup or the best because you think it was his/her loss? I cannot seem to carry a positive attitude….