sandra-I'm like you, I can be argumentative and always want the last word. It's been hard for me to walk away but I have been working really hard and it has helped my serenity level a lot.
This time, I took the high road and did not respond to any of my EX's pleading, begging, angry emails. I use Outlook and set up rules for these emails to go into a folder where I can see that yes, I got an email from him, yes, I can read it, but no, I don't have to respond. Re-reading his helps me to see that anything I could say has already been said and would be used against me.
I have been thrown under the bus too many times, had my own words used against me and this time, I was determined not to respond. It does not mean that I haven't wanted to respond; I would compose emails and then save them in another folder - in fact, I went back and read some of his earlier ones to me, some of mine in response and realize that the only thing that changed was the date in which they were sent. This time, I didn't respond and it felt good. I didn't get back on the merry-go-round and say the same words over and over again, only to have them thrown back in my face.
The EX revived his Facebook page and yes, I looked (we're not friends) and judging from what I see, he is still up to the same old tricks. He's registered on dating sites (2weeks after we split up) and the line of BS he has on there is unbelievable. But, when I see that, it tells me that nothing will ever change with him.
I am moving forward and while I won't deny that there's hurt and anger to process through, I can come to SR, go to an Al-Anon meeting, read through their literature or Melody Beattie's books for comfort, inspiration and hope.