It's difficult to fully heal after those kind of situations and you now know from personal experience that it will never be the same again. Really think about what happened. You haven't heard from him in years, he makes a fake account telling you to talk to him again, you do, and he then proceeds to cry and beg his way back into your life and to give him another chance? I wouldn't say I'm a relationship expert but when you guys first began dating and you had that fantastic honeymoon period, was any of it from apologizing, crying, and begging? I'm just curious to see what you fell for again if that is how he was acting? I'm a very emotional and sensitive person but did you really fall for him again, or did you feel bad and still had the feeling of hurt from the relationship in the past?
It just goes to show that he doesn't really need you back because he thinks there is a future with you, he is doing this purely for his own self interest. He felt like he lost you and he now has you back and it's a complete 180. That's not love, that's feeding his own ego and trying to have a cushion while he is inbetween girls. I know you still care for him and you feel like you don't have the courage but you have to cut him out of you life. You said it yourself: you are dead on the inside. And you don't trust him as you already got angry for him coming home late. It's just a messy situation and helps the argument that starting over with somebody new is so much better and healthier than trying to reignite old failures because he said he "changed".
That's the funny thing about changing, if he really did change it would be completely noticeable to you because you've known him intimately for the time you dated him and especially after not talking for a few years, you certainly should be able to pick up on that. Not coming to you saying "I changed, I changed, I did this, this and this." What are you really proving there, other than the fact that you are still the same shitty person? Just my take on the matter.
Waking up next to a beautiful girl,
Step outside and say hello to my beautiful world.