I reached the point last night where I realised I could either be happy for J that she met someone or I could feel sorry for myself... and it seems that thought was what I needed.
I really am happy for her, just as I would have been happy for her to have met someone if she and I had been dating. That shouldn't change just being she's only in my life as a friend.
I'm still planning to tell her how I feel, Tonberry is going to help me write the e-mail, and perhaps things will change. She met her interest through a dating service, so she isn't that close yet, and it's not like I'd be asking her to forget him in any case.
We'll see how it goes, but for now I'm feeling better.