She will be an amazing fit for you very soon, but just might not be there yet. Although there were definitely some age difference issues, you dated girl number two for most of last year and were extremely impressed, and had some absolutely amazing times, though she did dump you for a few days.
You figure you might marry girl two some day, but right now she isn't ready for that, and girl one is the funest most exciting girl you have ever been with in a very long time, and things are going very well right now in your relationship as you are working things out