When I met my current boyfriend, we had an instant spark... and that was just online o.o When we finally met (a year and a half later!) it was crazy, we both clicked instantly.
Then we got married
I wasn't looking for a partner at all, I actually believed myself to be in love with someone else... and ignored what I felt for him for quite a long time. Equally, he was in a long-term relationship with someone else, so neither of us were searching, looking, or trying to put out the right mindset or anything. We were just ourselves, and told each other our problems and our joys, and found each other to be so honest and genuine that eventually we gave in and admitted we were in love with each other.