The right thing?

Yes, I know, I've been procrastinating on this, but sometimes it's hard to sit down and objectively think about the past when all you want to do is curl up in a little ball and cry your eyes out.

I found out--the hard way, of course--that my ex was lying to me from day 1, basically.  He already *had* a girlfriend when he started flirting with me, and instead of mentioning that he was taken, he instead decided to keep it a secret and try dating two girls at once.  Suffice it to say that I was the "other woman" for 16 months.  Hell, he lied to me when we broke up, because I asked him if there was someone else, and he looked me _in the eyes_ and said "No."  And when the actual girlfriend found out that he and I had been dating and confronted him about it (yay dance crowd gossip!!), he tried to deny it and say that I was delusional/crazy, he and I were only friends, and nothing happened between us.  Of course, he also blocked me on Facebook so he could make his relationship with her public, which I found out second hand.... So... One of the girlfriend's friends asked me for proof after I messaged her to ask if she'd tell the girlfriend I was sorry for everything that had happened (because I am sorry. I didn't realize this was what was going on.  If I had known that he was already dating someone before we even met, I wouldn't've gone within a 50 ft. radius of him, because that shit is not cool.  I've already been "the other woman" once, and I barely survived that!), and so I sent back all the emails ever exchanged between my ex and myself.  I put them all into one nice word document that turned out to have 272 (I think.  I'm not going to open the thing and look, because right now I can't take the temptation of reading the emails and crying all over again) pages of correspondence.

So now I'm wondering if I did the right thing.  According to one of my mentors, I owe my ex nothing since he was/is a lying scumbag who was leading on *at least* two women (and who knows how many more), but at the same time I feel horrible that someone else has to also go through the heartbreak over this bastard that I am facing.  Because my heart is breaking all over again... =(

And that's my angsty post for the day.  I need to go refill my water glass, since I'm back to not being able to stomach food again. >.<