I do agree with Mach1 that you should start a new thread so that this one doesn't get locked in the middle of this topic...
Although I do also want to put yet another spin on GM and antler's comments...
Perhaps the most important thing to understand is... before you try to figure out how being happy could be attractive... it is really important for us to realize just how UN-attractive being miserable, or even slightly unsatisfied and needy, can be...
If we get rid of what is most certainly un-attractive... then we can worry about how to be attractive while being happy...