Yours is not love. It's only physically. You "love" her becos
she is young and pretty now but in years to come, she and you will
grow old, so by then will you still "love" her? The "passion" that
you described above is just a lust. If you love her, you will
regard her as a wife rather than gf. If you really love her, you
won't have sex with her till you marry her. But in your case, she
is just a commodity. So now do you still think you love her
especially if a more pretty pro happen to be known by you?
And do go for medical checkup if you didn't wear that rubber during
your "love" making session.
Good luck!