<human>: Can you provide a brief overview of the text?

I've posted quite a few things about this whole situation, but here is the last post I made about it:  

So, last night she (32f) called me and asked me to come over to her house (which was our house when we were together).  I jumped at the chance because it meant that I could talk with her and spend time with our son.  Seeing and playing with my son was awesome and I was there long enough to put him to bed.  However, talking with my ex about everything that has gone on for the past few months has me a little unsettled.

First was having to hear about her being with someone else.  I know I had dated someone else and slept with them, but hearing her say that she had been with someone in the same bedroom that we shared has made me feel lower than dirt.  I'm sure I deserve some of it because when I first left she wanted to work things out, but my stubborness and pride got in the way.

Of course, we ended up talking about all of the things I did to her during our time apart.  My emotions got the best of me and I ended up cursing alot at her and posting stuff reddit.  I even tried selling her ring online.  Looking back on it all, I am a big asshole and if we don't ever get back together then I understand why.

After we talked, I went home and posted to Facebook an apology to her so that everyone could see how sorry I was.  I couldn't sleep much thinking about how much I hurt her and the girl I just broke up with, plus thinking that I'm going to do all this and still not get with the person I want to be with.  The hardest thing is to be around her and not be able to touch her.

I don't know if I'm looking for advice or just needing to vent my feelings, but any advice is welcomed.
<bot>: Started talking to my ex again.  While is it nice, I'm seeing how much of a jerk I had been and I'm thinking I'm going to be doing this for nothing if she never wants another relationship with me.