A one eyed man sees only flat landscape. It takes another point of view to get perspective. And, yes, venting is great.

If you haven't given her that letter yet, I've got a couple of reccomendations. You say you're happy and content. Take out content. Content is a buzz word with a negative connotation. I know you mean it well, but content can mean, "I'm happy where I am, and I don't want to look for anything better." And despite your actual intentions and meaning of it, it can (and probably will) be interpreted wrong. Additionally, on the lines of the "I love you" line, if the two of you are there already, then great. If not, then I would reccomend telling her for the first time instead of writing it to her. I just don't think you'd get the same impact if you wrote it down.

As for the rest of it... After telling her how you feel, I wouldn't reccomend treating it like a competition. I just don't think it's healthy. It sucks that she's considering getting back with an ex while she's with you. I've been there, and I just tried to be understanding, and it passed in my case. Maybe I was lucky. *shrug* I just don't think that you should try to one up the guy. If they have a long history, or if she didn't want their relationship to end when it ended, then you may subconsiously make her mad in the process.

Other than that... good luck.

What is it they say about silence being golden?