I had the same problem, and it's almost impossible to get rid of that impulse to (in my case) "save" a bad boy with issues. It resulted in a few bad breakups and zero success. I can't really give you any advice, as I eventually got lucky and ended up with someone less problematic, but I just wanted to say I understand. You're realistic about it, and you know yourself. That gives me confidence that you'll do well no matter what happens.
Glad you're enjoying the job, by the way.
And no worries, I don't get too excites over my birthdays anyway. It's just another day...
RED 2 is definitely on my list, mostly because of Bruce Willis. I'll forever have a crush on that man!