First things first NC ...
You are never alone. Get that misconception out of your head and right now. You may be single, but you are not alone. As long as you have this website and friends here who will be supporting you you are never alone. Also as long as you have a form of faith, you know just as well you are never alone.
There's a difference here between being single and being alone. Its easy to differenciate between too.
Secondly, though Debra was a cutie, and she may have jilted you, I have to go along with C9G on this one ... there are plenty more out there that can be caught. (some are even better than the one you just had! Believe it or not!) As prudish as this sounds, your mentality of "oh gee she left me ..." needs to be changed to "oh well her loss ... not mine ... "
I know there are people out there in the world, both male and female that for whatever reason, their makeup says that they just have to have a partner in their life ... but I'm here to tell you ... not having a partner isn't such a bad thing. It takes some grooming to get used to being single, and it can be an aquired lifestyle, but people do it all the time, both male and female.
I've been partner free for over 13 years now (mebbe longer) ... I never feel at a loss, because I don't dwell on the "obvious problem" that of being single. Have you ever sat back when you were partnered and said to yourself, "You know if I were single I could be doing thus and such ..." Well now's your chance. Step out ... no holds bared ...
Take time for yourself, experience your new found liberty, go to those places that you've always wanted to but didn't because for whatever reason your partner didn't care to want to go.
Really, NC, Its not so bad. There are many of us on this board who for whatever reason are single, and have been single for a while ... but we have just as much fun as the next guy because we don't look at singleness as a handicap.
Cheer up bud, its not so bad. Yeah it might be difficult at first but really, the more you put yourself into the thought process of this lifestyle, you might find it not so bad.
Certainly your christmas shopping list just got shorter and cheaper!

That's gotta account for something eh?
Post where you want to do some online flying, if I can get there I will, otherwise, I have every confidence that you'll make it out of this just fine.